Solid State Drive (SSD) Technology in Infortrend Storage: SSD Life Remaining Notifications
Solid State Drive Technology :
SSD Life Remaining Notifications
Application Note
Abstract:
This application note introduces SSD wear leveling technology and
Infortrend’s intuitive GUI with easy-to-understand endurance characteristics
to minimize the impact of the limited write life cycle of SSD.
Copyright © 2014 Infortrend Technology, Inc. All rights reserved. Infortrend, ESVA, EonStor, EonNAS and EonPath are trademarks or registered trademarks of
Infortrend. All other marks and names mentioned herein may be trademarks of their respective owners. The information contained herein is subject to change
without notice. The content provided as is, without express or implied warranties of any kind.
Solid State Drive (SSD) Technology in Infortrend Storage: SSD Life Remaining Notifications
Contents
Products Covered in This Document ........................................................................................... 3
Introduction .................................................................................................................................... 3
About SSD Wear Leveling ............................................................................................................. 3
Checking SSD Life Remaining ...................................................................................................... 3
Conclusion ..................................................................................................................................... 6
Copyright © 2014 Infortrend Technology, Inc. All rights reserved.
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Solid State Drive (SSD) Technology in Infortrend Storage: SSD Life Remaining Notifications
Products Covered in This Document
Storage Systems: EonStor DS family
Introduction
As more organizations seek to effectively employ the power of information, the demand for data
intensive and transaction workloads has dramatically increased. Recently, Solid-state disks (SSDs)
provide an increasingly attractive alternative to hard drives (HDD) because SSD are reaching both
a maturity and an affordable price point. Therefore, more and more enterprises consider SSD
solutions in storage, such as all-flash (pure SSDs) or hybrid storage (SSDs and HDDs). However,
unlike HDD, SSD technology’s overall write performance is limited by its endurance. In other words.
It only supports a fixed number of writes. In order to assist users to easily monitor the life remaining
of SSD and plan ahead, Infortrend storage solutions provide an intuitive GUI design with
easy-to-understood native endurance characteristics from SSD manufacturers to notify users and
minimize the impact of the limited write life cycle of SSD.
About SSD Wear Leveling
Wear leveling applied in NAND flash is a technique developed from SSD vendors to extend SSD
life cycle which distributed use of each block. NAND flash memory is susceptible to wear due to
repeated writes and erase cycles that are common in everyday business applications. In order to
prevents continuous writes and erases in the same block, wear leveling works continuously to
re-allocate SSD’s logical blocks to different pages and evenly distribute wear to each block to
prolong the overall endurance and read / write life cycles.
Checking SSD Life Remaining
Infortrend provides a setting for configurable life remaining threshold in order to notify users that
SSD reached the monitoring threshold and may want to perform countermeasures. The actions
could be data replication, data migration, SSD replacement, etc. Based on the characteristics of the
applications, users can modify the threshold values from options (Disable / 5/ 10/ 20/ 25/ 30/ 35/ 40/
45/ 50%) and the threshold will be set at 10% by default. An event will prompt and be logged when
any SSD’s remaining life reached users defined threshold.
Copyright © 2014 Infortrend Technology, Inc. All rights reserved.
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Solid State Drive (SSD) Technology in Infortrend Storage: SSD Life Remaining Notifications
Figure 1: User defined notification threshold of SSD remaining life
Alternative methods to check SSD life remaining on GUI
1. Enclosure View
Figure 2: View SSD life remaining % from front view page
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Solid State Drive (SSD) Technology in Infortrend Storage: SSD Life Remaining Notifications
2. Drive Details
Figure 3: View SSD life remaining % from drive details page
3. SSD Cache Pool Status
Figure 4: View SSD life remaining % from SSD Cache pool page
Copyright © 2014 Infortrend Technology, Inc. All rights reserved.
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Solid State Drive (SSD) Technology in Infortrend Storage: SSD Life Remaining Notifications
Conclusion
As the need for SSD solution grows, Infortrend storage solutions not only deliver many attractive
licensed features, such as SSD Cache and tiering solution to enhance storage performance, but
also an intuitive GUI with easy-to-understand endurance settings in order to notify users that SSD
reached the monitoring threshold. Based on this information, users can effectively employ the
power of SSD and prepare or perform countermeasure actions such as data replication, data
migration, or SSD replacement and be confident that their valuable data is well protected.
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