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Rapid RAID Rebuild: Helps significantly decrease the time to recover lost data by only rebuilding
the stripe where the corruption occurred, not the empty space or other stripes
Snapshots: Enables creation of copies of data for backup, parallel processing, testing, and
development, and have the copies available almost immediately. Base software supports up to 128
snapshot targets per system.
The ThinkSystem DS4200 capabilities can be expanded with optional licensed functions.
Optional licensed functions include:
Intelligent Real-time Tiering for SSDs: The SSD tiering upgrade option allows the use of SSDs as
read and write storage in the hybrid HDD and SSD storage configurations. Also, this option makes it
easy and economical to deploy hybrid storage by dynamically moving frequently accessed data to
SSDs in the system, resulting in flash drive performance without manually creating and managing
storage tier policies.
Snapshots upgrade: The snapshot upgrade options increase the supported number of snapshot
targets to 512 or 1024 per system.
Asynchronous Replication: The asynchronous replication feature provides storage system-based
data replication between two peers by using asynchronous data transfers over IP (iSCSI)
communication links.
The replication is done at predetermined intervals (Now, 1 hour, 12 hour, 24 hour) and does not
require high-bandwidth network connection. For ultimate flexibility, DS4200 asynchronous
replication interoperates with the ThinkSystem DS2200 and DS6200, as well as Lenovo Storage
S2200 and S3200.
The asynchronous replication option must be acquired (or licensed) for both primary (local) and
secondary (remote) systems.
The following table lists the Feature on Demand (FoD) upgrades for the ThinkSystem DS4200 to enable
optional software features. Each optional DS4200 function is licensed on a per-system basis and covers
both controller enclosure and all attached expansion units.
Table 10. Optional software features
Description
512 Snapshot Upgrade License
1024 Snapshot Upgrade License
SSD Data Tiering License*
Asynchronous Replication License**
* The SSD Data Tiering Upgrade option is not required for all flash array configurations (a storage system with SSDs only; no
HDDs installed); however, it is required for hybrid configurations (a storage system with SSDs and HDDs).
** Asynchronous Replication requires an FC/iSCSI Controller-based DS4200 storage unit.
Software maintenance for standard software features is included in the ThinkSystem DS4200 base
warranty and optional warranty extensions, which provides 3-year software support with the option to
extend it up to 5 years in 1-year or 2-year increments (see
Lenovo ThinkSystem DS4200 Storage Array
Warranty
for details).
Part
Feature
number
code
01GV559 AWGM
01GV560 AWGN
01GV561 AWGP
01GV562 AWGQ
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