Boot Drive Replacement Guide Isilon X200 Replace a boot drive 120-0083-01 REV H February, 2016 l l l l l l l l l l l l Replacing a boot drive................................................................................................2 Gather logs................................................................................................................ 2 Install a drive support package.................................................................................. 3 Download a Field Replacement Unit (FRU) package.................................................... 3 Install the boot drive replacement..............................................................................4 Install the FRU package and run scripts.................................................................... 13 Update drive firmware..............................................................................................16 Verify a drive firmware update..................................................................................17 Gather logs.............................................................................................................. 18 Returning a failed part to Isilon................................................................................ 18 Update the install database..................................................................................... 18 Where to go for support............................................................................................18 Boot Drive Replacement Guide Replacing a boot drive You can replace a failed boot drive in the field. This node contains two flash boot drives. The boot drives contain data vital to the health of the node, including the OneFS operating system and backups of the node journal. The two boot drives mirror each other, which provides a backup source of data if one of the drives fails. You must identify which of the two boot drives has failed before you shut down the node. If you accidentally remove the healthy drive, the data on the node can be lost. CAUTION If this procedure is not followed accurately, data loss and severe disruption of cluster operations can occur. Perform every step in this procedure; if the system does not respond as expected, contact Isilon Technical Support. CAUTION Perform this procedure on only one node at a time. Performing maintenance on multiple nodes in parallel may lower the protection level of the cluster, put data at risk, and lead to the interruption of client workflows. Working with clusters in SmartLock compliance mode Clusters running in SmartLock compliance mode require a sudo prefix to run root commands. If a cluster is running in SmartLock compliance mode, root access is disabled on the cluster. Because of this, you can run some commands only through the sudo program. Prefixing a command with sudo enables you to run commands that require root access. For example, if you do not have root access, the following command fails: isi drivefirmware status However, if you are on the sudoers list, the following command succeeds: sudo isi drivefirmware status Compliance mode commands that require changes beyond the sudo prefix are noted in the procedure steps. For more information on the sudo program and compliance mode commands, see the OneFS CLI Administration Guide. Gather logs Before you begin any maintenance on a cluster, gather cluster logs. You must collect cluster logs before all maintenance procedures. Cluster logs provide snapshots of the cluster, which you can review to make sure that maintenance is successful. Procedure 1. Open a secure shell (SSH) connection to any node in the cluster and log in. 2 X200 Boot Drive Replacement Guide Replace a boot drive 2. Gather cluster logs by running the following command: isi_gather_info Install a drive support package Before you install a new drive, download and install the drive support package. The drive support package updates drive configuration information on the node, and contains the latest firmware versions for Isilon qualified drives. The drive support package is only supported by clusters running OneFS 7.1.1 or later. If your cluster is running an earlier version of OneFS, you can skip this step. Procedure 1. Go to the EMC Support page that lists all the available versions of the drive support package. 2. Click the latest version of the drive support package and download the file. Note See the Considerations for installing the latest drive support package section in order to select the appropriate variant of the package. If you are unable to download the package, contact EMC Isilon Technical Support for assistance. 3. Open a secure shell (SSH) connection to any node in the cluster and log in. 4. Create or check for the availability of the directory structure /ifs/data/ Isilon_Support/dsp. 5. Copy the downloaded file to the dsp directory through SCP, FTP, SMB, NFS, or any other supported data-access protocols. 6. Unpack the drive support package by running the following command: tar -zxvf Drive_Support_<version>.tgz 7. Install the package by running the following command: isi_dsp_install Drive_Support_<version>.tar Note You must run the isi_dsp_install command to install the dirve support package. Do not use the isi pkg command. Download a Field Replacement Unit (FRU) package Before you replace a component in a configure-to-order (CTO) node, obtain a Field Replacement Unit (FRU) package from the EMC FTP site. The FRU package updates the CTO and as-built information on the node, then forwards the updated information to Isilon Technical Support. Note It is not necessary to obtain a FRU package for non-CTO nodes. If you are performing maintenance on a non-CTO node, skip all steps related to the FRU package. Install a drive support package 3 Boot Drive Replacement Guide Procedure 1. Download the latest FRU package from ftp://ftp.emc.com/outgoing/Fru_Package/. 2. Note the name of the FRU package. You will use the name for other commands. Package names follow this convention: IsiFru_Package_ <date-time-stamp> .tgz For example: IsiFru_Package_201507072125.tgz 3. Place the FRU package on the cluster through a network drop, or by asking someone at the cluster site to place the package for you. If neither of these options is available to you, contact Isilon Technical Support for assistance. Install the boot drive replacement Identify and remove the failed boot drive, and then install and test the replacement drive. Write a sentinel file Because replacement of an incorrect boot drive severely affects cluster stability, verify the successful replacement of the failed drive. Prior to replacing the failed drive, write a sentinel file to the root partition. After the failed drive is replaced, the file is only readable if the correct boot drive is replaced. Procedure 1. Use the output of isi devices as the content of the file. Write a sentinel file to the root partition by typing the command: isi devices > /sentinel.txt Identify a failed boot drive When performing a boot drive replacement on a node with two boot drives, first determine which of the two drives must be replaced. Procedure 1. Using a serial cable, connect to the node you are going to work on. 2. View boot drive information. Depending on your version of OneFS, run one of the following commands: OneFS 8.0 or later camcontrol devlist | grep ad The following information appears: <SanDisk SSD P4 8GB SSD 8.10> (pass13,ada0) <SanDisk SSD P4 8GB SSD 8.10> (pass14,ada1) at scbus1 target 0 lun 0 at scbus2 target 1 lun 0 The boot drives are listed in the left column. In the previous example, both boot drives are healthy. If one of the boot drives has failed, the drive will not appear in the output. Make note of whether the failed boot drive is the ada1 or ada0 device, and then use the following table to determine the location of the boot drive inside the node. 4 X200 Boot Drive Replacement Guide Replace a boot drive Boot Order OneFS Drive ID Board Drive Slot Inside Node Master ada1 J4 Slave ada0 J3 Make note of the board drive slot that contains the failed boot drive. The ada1 drive is on the right side of the boot carrier card. The ada0 drive is on the left side of the boot carrier card. CAUTION If both drives appear to have failed, do not continue. Contact Isilon Technical Support immediately. Earlier than OneFS 8.0 atacontrol list The following information appears: ATA channel Master: Slave: ATA channel Master: Slave: ATA channel Master: II Slave: ATA channel Master: Slave: II ATA channel Master: Slave: ATA channel Master: Slave: 0: 1: 2: 3: 4: 5: no device present no device present no device present no device present ad4 <SanDisk SSD P4 8GB/SSD 8.10> Serial ATA v1.0 no device present no device present ad7 <SanDisk SSD P4 8GB/SSD 8.10> Serial ATA v1.0 no device present no device present no device present no device present The boot drives are listed under ATA channel 2 (master) and ATA channel 3 (slave). In the previous example, both boot drives are healthy. If one of the boot drives has failed, the display reads no device present for that drive. Make note of whether the failed boot drive is the ad4 or ad7 device, and then use the following table to determine the location of the boot drive inside the node. Boot Order OneFS Drive ID Board Drive Slot Inside Node Master ad4 J3 Slave ad7 J4 Make note of the board drive slot that contains the failed boot drive. Identify a failed boot drive 5 Boot Drive Replacement Guide CAUTION If both drives appear to have failed, do not continue. Contact Isilon Product Support immediately. 3. If both drives appear to be healthy, one of the drives may have partially failed. To identify a partially failed drive, check the status of the individual partition mirrors by typing the following command: gmirror status From left to right, the output displays the name of each mirror, the status of the mirror relationship, and the component IDs for each boot drive. The following example shows the boot drive partition layout in a healthy node. The mirrors for each partition show: l a value of COMPLETE in the Status column. l the component IDs for both boot drives in the Components column. The component IDs are a combination of the OneFS Drive ID, and the partition number (the number following the letter p). Both boot drives are listed for each mirror with the exception of the var-crash mirror, which only lists the slave drive. Note If you are running OneFS 8.0 or later, your OneFS Drive IDs will display as ada0 or ada1.The partition numbers in the display may differ from the following example. Name mirror/root0 Status COMPLETE mirror/var-crash mirror/mfg COMPLETE COMPLETE mirror/journal-backup COMPLETE mirror/var1 COMPLETE mirror/var0 COMPLETE mirror/root1 COMPLETE Components ada7p4 ada4p4 ada7p10 ada7p9 ada4p10 ada7p8 ada4p8 ada7p7 ada4p7 ada7p6 ada4p6 ada7p5 ada4p5 The following example shows the boot drive partition layout as it appears in the event of a failed boot drive. A failed boot drive forces the mirrors for a partition to show: l a value of DEGRADED in the Status column. l only the component ID of the healthy boot drive in the Components column. The failed boot drive does not appear. Attention DEGRADED does not refer to a specific drive, but to the mirror relationship between the drives. If a drive appears in the Components column next to the DEGRADED status, it is healthy and should not be removed. 6 Name mirror/root0 mirror/var-crash mirror/mfg Status DEGRADED COMPLETE COMPLETE mirror/journal-backup COMPLETE X200 Boot Drive Replacement Guide Components ad4p4 ad7p10 ad7p9 ad4p10 ad7p8 Replace a boot drive mirror/var1 COMPLETE mirror/var0 mirror/root1 DEGRADED COMPLETE ad4p8 ad7p7 ad4p7 ad4p6 ad7p5 ad4p5 In the previous example, ad7p4 is missing from the degraded partition mirror/ root0, and ad7p6 is missing from the degraded partition mirror/var0. The missing drive, ad7, is the failed drive. Determine which drive has failed. Use the previous table to determine which board drive slot contains the failed boot drive and make a note of the number (J3 or J4). Attention If both drives have failed, do not continue. Contact Isilon Product Support. Power down the node Power down the node before performing maintenance. Procedure 1. Connect to an available node in the cluster with a serial cable or network drop. 2. Determine the IP address of the node you are powering down by typing the command: isi status -q 3. From the node that you connected to, open a secure shell (SSH) connection to the node that is to be shut down by typing the command: ssh <node_ip_address> 4. Power down the node by typing the following command: shutdown -p now If the node does not respond to the shutdown command, press the Power button on the node three times, and then wait five minutes. If the node still does not shut down, you are at risk for losing data. Do not proceed. Contact EMC Isilon Technical support for assistance. CAUTION A forced power down should be attempted only if a node is unresponsive. Forcing the power down of a healthy node can result in data loss. 5. Verify that the node is powered down by typing the following command: isi status -q Confirm that the node has a status of D--R (Down, Read Only). See node 3 in the following example. ID |IP Address |DASR| In Out Total| Used / Size | Used / Size ---+---------------+----+-----+-----+-----+------------------+1|10.53.217.201 | OK | 48M| 0| 48M| 19G/ 6.2T(< 1%)|(No SSDs) 2|10.53.217.202 | OK | 46M| 0| 46M| 23G/ 6.2T(< 1%)|(No SSDs) Power down the node 7 Boot Drive Replacement Guide 3|10.53.217.203 n/a/n/a( n/a) |D--R| n/a| n/a| n/a| n/a/ n/a( n/a)| Slide the node out of the rack Slide the node away from the rack to access the contents of the node. Procedure 1. Label the InfiniBand, ethernet, and power cables connected to the back of the node to ensure that they are reconnected correctly. 2. Disconnect all cables from the back of the node. Note If there are transceivers connected to the end of your IB or ethernet cables, make sure to remove them with the cables. If you are using fiber ethernet cables, you will need to disconnect the cable from the transceiver, then remove the transceiver from the node. 3. Remove the node front panel. 4. Remove the retaining screws that secure the node to the rack cabinet. 5. Slide the node from the rack cabinet to fully extend the slide rails and provide clear access to the node. Do not remove the node from the slide rails. DANGER Slide the node out from the rack slowly. Do not extend the rails completely until you confirm that the node is latched and safely secured to the rails. Remove the node top panel You remove the top panel to gain access to the contents of the node. WARNING Properly ground yourself to prevent electrostatic discharge from damaging the node. For example, attach an ESD strap to your wrist and the node chassis. Procedure 1. Loosen the captive screw that secures the node top panel. 2. Slide the top panel toward the rear of the node, and then lift the top panel to access the node interior. Remove the cross bracket Removing the cross bracket provides clear access to the inside of the node. Procedure 1. Locate the cross bracket within the node. 8 X200 Boot Drive Replacement Guide Replace a boot drive Figure 1 Cross bracket 1 2. Remove the cross bracket by pressing on both sides of the node chassis where the cross bracket is connected, then lift the bracket out of the node. Replace the failed boot drive After the node is open, locate the failed boot drive. Remove and replace the failed drive with a new drive. 1 Replace the failed boot drive 9 Boot Drive Replacement Guide 1. Boot drive Procedure 1. Locate the two board drive slots that contain the boot drives. The slots are labeled J3 and J4. Gently pull the failed boot drive from the board drive slot. 1 2 1. J3 connector 2. J4 connector 2. Insert the replacement boot drive into the empty boot drive slot and gently press down to secure the drive. Install the cross bracket You must install the cross bracket by hooking it to the bracket holes on the interior of the node and then snapping the other end into the chassis wall. WARNING The cross bracket sits directly above the boot drives. Use caution when installing the cross bracket so that the boot drives are not dislodged or damaged. 10 X200 Boot Drive Replacement Guide Replace a boot drive Install the node top panel You must secure the top panel onto the node. Procedure 1. Place the top panel on the node so that the front edge of the top panel is about one inch behind the drive bays, and then slide the top panel forward into place. WARNING The chassis intrusion switch can be damaged if the top panel is slid too far back on the node. 2. Tighten the captive top panel screw to secure the top panel to the node. Return the node to the rack Return the node to the rack after all work is complete. Procedure 1. Slide the node back into the rack cabinet. WARNING Slide the node slowly so you do not slam the node into the rack and damage the node. 2. Reconnect the ethernet, InfiniBand, and power cables to the back of the node. 3. Secure the node to the rack cabinet. 4. Replace the node front panel. Isolate the node from the cluster Isolate the node from the cluster by disconnecting it from the InfiniBand network. Procedure 1. Label the InfiniBand cables to ensure that they are reconnected properly later. 2. Disconnect the InfiniBand cables from the back of the node. 3. Connect directly to the node using a serial cable. Power up the node Power up the node by pressing the power button on the back panel. Procedure 1. Power up the node by pressing the power button on the back panel of the node. It is located in the upper-left corner of the back panel. Install the node top panel 11 Boot Drive Replacement Guide Verify sentinel file Confirm that the correct boot drive is replaced. Locate the sentinel file that was sent to the root partition. Procedure 1. Locate the sentinel file in the root partition by typing the following command: cat /sentinel.txt If the sentinel file appears, you replaced the correct boot drive. If the file is missing, do not continue. Contact Isilon Product Support. 2. Remove the file by typing the following command: rm /sentinel.txt Verify healthy boot drives Verify that the new drive is active and healthy after the replacement boot drive is installed in the node. Procedure 1. Verify that the boot drives are healthy by typing the following command: gmirror status The following information appears: Note If you are running OneFS 8.0 or later, your OneFS Drive IDs will display as ada0 or ada1.The partition numbers in the display may differ from the following example. Name Status Components mirror/root0 COMPLETE mirror/var-crash mirror/mfg COMPLETE COMPLETE mirror/journal-backup COMPLETE mirror/var1 COMPLETE mirror/var0 COMPLETE mirror/root1 COMPLETE ad7p4 ad4p4 ad7p10 ad7p9 ad4p10 ad7p8 ad4p8 ad7p7 ad4p7 ad7p6 ad4p6 ad7p5 ad4p5 Confirm that the values in the Status column all read COMPLETE. 2. Verify boot drive information. Depending on your version of OneFS, run one of the following commands: OneFS 8.0 or later camcontrol devlist | grep ad The following information appears: <SanDisk SSD P4 8GB SSD 8.10> (pass13,ada0) 12 X200 Boot Drive Replacement Guide at scbus1 target 0 lun 0 Replace a boot drive <SanDisk SSD P4 8GB SSD 8.10> (pass14,ada1) at scbus2 target 1 lun 0 Earlier than OneFS 8.0 atacontrol list The following information appears: ATA channel Master: Slave: ATA channel Master: Slave: ATA channel Master: II Slave: ATA channel Master: Slave: II ATA channel Master: Slave: ATA channel Master: Slave: 0: 1: 2: 3: 4: 5: no device present no device present no device present no device present ad4 <SanDisk SSD P4 8GB/SSD 8.10> Serial ATA v1.0 no device present no device present ad7 <SanDisk SSD P4 8GB/SSD 8.10> Serial ATA v1.0 no device present no device present no device present no device present Ensure that both boot drives are listed. Connect the node back to the cluster Reconnect all InfiniBand cables to add the node back into the cluster. Procedure 1. Connect all InfiniBand cables to the rear of the node. The node merges with the cluster; it is unnecessary to power cycle the node. Install the FRU package and run scripts Update the configure-to-order (CTO) and as-built information on the node by installing a FRU package. Note It is not necessary to update CTO and as-built information on non-CTO nodes. If you are completing maintenance on a non-CTO node, skip all steps related to the FRU package. Note If your cluster is running in SmartLock compliance mode with OneFS 7.0.2.10 or later, 7.0.1.4 or later, or 7.1.1.0 or later you will need to enter the provided compliance mode commands to run the FRU scripts. If your cluster is running in compliance mode but is not running one of these versions, you will need to upgrade your OneFS version to support the compliance mode commands. Contact Isilon Technical Support. Connect the node back to the cluster 13 Boot Drive Replacement Guide Install the FRU package on the node Unpack and install the FRU package on the node. Procedure 1. Place the FRU package on the node. 2. Unpack the FRU package by running the following command: tar -zxvf IsiFru_Package_<date-time-stamp>.tgz 3. Type cd to change to the directory containing the FRU tar. 4. Install the package. Depending on your version of OneFS, run one of the following commands: OneFS 8.0 or later isi upgrade patches install IsiFru_Package_<date-timestamp>_.tar Earlier than OneFS 8.0 isi pkg install IsiFru_Package_<date-time-stamp>.tar As the package installs, the following message appears: Preparing to install the package... Checking the package for installation... Installing the package Committing the installation... Package is committed. Run the update script After the FRU package is installed on the node, run the update script. Procedure 1. Move to the FRU package location by running the following command: cd /var/crash/cto/fruPackages/IsiFru_Package_<date-time-stamp> 2. Perform the update script by running the following command: ./isi_fru_update_cluster The system displays confirmation of the following items: l CTO capability l Current node hardware configuration Run the ABR script Run the As Built Record (ABR) script to report the updated hardware to Isilon Technical Support. Procedure 1. Verify installation of the updated hardware by running the following command: ./isi_cto_update --abr 14 X200 Boot Drive Replacement Guide Replace a boot drive The update is verified and a series of status messages confirm the node configuration, and if an FTP connection is available, an updated ABR is sent to Isilon Technical Support. 2. If an external connection is not available, manually collect and deliver to Isilon Technical Support the updated ABR. 3. If the cluster is running in SmartLock compliance mode, verify installation of the updated hardware by running the following command: sudo /usr/bin/isi_hwtools/isi_cto_update --abr --filepath . Note You must include the period at the end of the command. Sending an ABR to Isilon with no connectivity If no external connectivity is available, the As Built Record on a Configure to Order (CTO) node cannot be automatically delivered to Isilon Technical Support. If external connectivity is available, the ABR is automatically generated and delivered to Isilon Technical Support. If there is no external connectivity available, you must generate and copy the ABR from the node, and then send the ABR to Isilon Technical Support through an alternate connection. Generate an ABR You can manually send an As Built Record (ABR) by copying an XML file from the node and emailing the file to Isilon Technical Support. You need network access to the node, or you can request that the customer provide the file to you. Procedure 1. Generate an ABR by running the following command: isi_make_abr The command generates a temporary file named asbuilt_ <serial-number>_<datetime-stamp> .xml. 2. Identify the full name of the ABR file by running the following command: isi_inventory_tool --display --itemType asbuilt | grep asbuiltFileName= The system output contains information about the ABR file. 3. Place the ABR file where you can copy it by running the following command: isi_inventory_tool --display --itemType asbuilt > /ifs/ asbuilt_ <serial-number>_<date-time-stamp> .xml 4. Copy the generated asbuilt_ <serial-number>_<date-time-stamp> .xml file. 5. If an FTP connection is not available, contact Isilon Technical Support for an alternate delivery method. Run the ABR script 15 Boot Drive Replacement Guide Remove the FRU package from the node After all scripts are run, remove the FRU package from the node. Procedure 1. Change out of the FRU package directory by running the following command: cd / 2. Delete the FRU package from the node. Depending on your version of OneFS, run one of the following commands: OneFS 8.0 or later isi upgrade patches uninstall IsiFru_Package_ <date-timestamp> Earlier than OneFS 8.0 isi pkg delete IsiFru_Package_ <date-time-stamp> Update drive firmware After you install a new drive in a node, update drive firmware. This procedure explains how to update drive firmware on clusters running OneFS 7.1.1 or later. If your cluster is running an earlier version of OneFS, you must download and install the latest drive firmware package. For more information, see the latest drive firmware package release notes available on https://support.emc.com/. Note Do not restart or power off nodes while drive firmware is being updated on the cluster. Procedure 1. Open a secure shell (SSH) connection to any node in the cluster and log in. 2. Depending on your version of OneFS, run one of the following commands to update the drive firmware for your cluster: OneFS 8.0 or later To update the drive firmware for your entire cluster, run the following command: isi devices drive firmware update start all --node-lnn all To update the drive firmware for a specific node only, run the following command: isi devices drive firmware update start all --node-lnn <node-number> OneFS 7.1.1 - OneFS 8.0 For OneFS versions between 7.1.1 - 8.0 you will need to run the following command on each node that requires drive firmware: isi devices -a fwupdate 16 X200 Boot Drive Replacement Guide Replace a boot drive CAUTION You must wait for one node to finish updating before you initiate an update on the next node. To confirm that a node has finished updating, run the following command: isi devices -d <node-number> A drive that is still updating will display a status of FWUPDATE. Updating the drive firmware of a single drive takes approximately 15 seconds, depending on the drive model. OneFS updates drives sequentially. Verify a drive firmware update After you update the drive firmware in a node, confirm that the firmware is updated properly and that the affected drives are operating correctly. Procedure 1. Ensure that no drive firmware updates are currently in progress by running one of the following commands: OneFS 8.0 or later isi devices drive firmware update list Earlier than OneFS 8.0 isi devices If a drive is currently being updated, [FW_UPDATE] appears in the status column. 2. Verify that all drives have been updated by running the following command: OneFS 8.0 or later isi devices drive firmware list Earlier than OneFS 8.0 isi drivefirmware status If all drives have been updated, the Desired FW column is empty. 3. Verify that all affected drives are operating in a healthy state by running the following command: OneFS 8.0 or later isi devices drive drive list --node-lnn all Earlier than OneFS 8.0 isi devices Verify a drive firmware update 17 Boot Drive Replacement Guide If a drive is operating in a healthy state, [HEALTHY] appears in the status column. Gather logs After you complete maintenance on a cluster, gather cluster logs. You must collect cluster logs after all maintenance. Cluster logs provide snapshots of the cluster that you can review to make sure that maintenance is successful. Procedure 1. Gather cluster logs by typing the command: isi_gather_info Returning a failed part to Isilon Return the failed part to Isilon Technical Support. Procedure 1. Contact Isilon Technical Support to notify them that you are returning a failed part. 2. Package the failed part in the packaging materials provided with the replacement part. 3. Attach the return label that was included with the replacement part. 4. For the RMA number, write the support case number provided by Isilon Technical Support. 5. Ship the failed part to the address specified on the return label. Update the install database After all work is complete, update the install database. Procedure 1. Browse to the EMC Product Registration and Install base Maintenance service portal, at: http://emc.force.com/createPSCcase. 2. Select the Product Registration and Install Base Maintenance option. 3. To open the form, select the IB Status Change option. 4. Complete the form with the applicable information. 5. To submit the form, click Submit. Where to go for support Contact EMC Isilon Technical Support for any questions about EMC Isilon products. Online Support Live Chat Create a Service Request Telephone Support 18 X200 Boot Drive Replacement Guide United States: 1-800-SVC-4EMC (800-782-4362) Canada: 800-543-4782 Replace a boot drive Worldwide: +1-508-497-7901 For local phone numbers for a specific country, see EMC Customer Support Centers. Help with Online Support For questions specific to EMC Online Support registration or access, email support@emc.com. Isilon Info Hubs For the list of Isilon info hubs, see the Isilon Info Hubs page on the EMC Isilon Community Network. Isilon info hubs organize Isilon documentation, videos, blogs, and user-contributed content into topic areas, making it easy to find content about subjects that interest you. Support for IsilonSD Edge If you are running a free version of IsilonSD Edge, community support is available through the EMC Isilon Community Network. However, if you have purchased one or more licenses of IsilonSD Edge, you can contact EMC Isilon Technical Support for assistance, provided you have a valid support contract for the product. Where to go for support 19 Boot Drive Replacement Guide Copyright © 2016 EMC Corporation. All rights reserved. Published in the USA. Published February, 2016 EMC believes the information in this publication is accurate as of its publication date. The information is subject to change without notice. The information in this publication is provided as is. EMC Corporation makes no representations or warranties of any kind with respect to the information in this publication, and specifically disclaims implied warranties of merchantability or fitness for a particular purpose. Use, copying, and distribution of any EMC software described in this publication requires an applicable software license. EMC², EMC, and the EMC logo are registered trademarks or trademarks of EMC Corporation in the United States and other countries. All other trademarks used herein are the property of their respective owners. For the most up-to-date regulatory document for your product line, go to EMC Online Support (https://support.emc.com). 20 X200 Boot Drive Replacement Guide