Datasheet

IBM Flex System x220 Compute Node 15
Optional support for SSD performance acceleration with MegaRAID FastPath and SSD caching with
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MegaRAID CacheCade Pro 2.0 (90Y4447).
Support for up to 64 virtual drives, up to 128 drive groups, up to 16 virtual drives per one drive group,
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and up to 32 physical drives per one drive group.
Support for logical unit number (LUN) sizes up to 64 TB.
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Configurable stripe size up to 1 MB.
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Compliant with Disk Data Format (DDF) configuration on disk (COD).
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S.M.A.R.T. support.
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MegaRAID Storage Manager management software.
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ServeRAID M5115 configurations and options
The x220 with the addition of the M5115 controller supports 2.5-inch drives or 1.8-inch solid-state drives
or combinations of the two.
At least one hardware kit is required with the ServeRAID M5115 controller, and there are three hardware
kits that are supported that enable specific drive support:
ServeRAID M5100 Series Enablement Kit for IBM Flex System x220 (90Y4424) enables support for
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up to two 2.5-inch HDDs or SSDs in the hot-swap bays in the front of the server. It includes a
CacheVault unit, which enables MegaRAID CacheVault flash cache protection. This enablement kit
replaces the standard two-bay backplane (which is attached through the planar to an onboard
controller) with a new backplane that attaches to an included flex cable to the M5115 controller. It also
includes an air baffle, which also serves as an attachment for the CacheVault unit.
MegaRAID CacheVault flash cache protection uses NAND flash memory powered by a
supercapacitor to protect data stored in the controller cache. This module eliminates the need for a
lithium-ion battery commonly used to protect DRAM cache memory on PCI RAID controllers. To avoid
the possibility of data loss or corruption during a power or server failure, CacheVault technology
transfers the contents of the DRAM cache to NAND flash using power from the supercapacitor. After
the power is restored to the RAID controller, the saved data is transferred from the NAND flash back
to the DRAM cache, which can then be flushed to disk.
Tip: The Enablement Kit is only required if 2.5-inch drives are to be used. If you plan to install four or
eight 1.8-inch SSDs only, then this kit is not required.
ServeRAID M5100 Series IBM Flash Kit for IBM Flex System x220 (90Y4425) enables support for up
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to four 1.8-inch SSDs. This kit replaces the standard two-bay backplane with a four-bay SSD
backplane that attaches to an included flex cable to the M5115 controller. Because only SSDs are
supported, a CacheVault unit is not required, and therefore this kit does not have a supercapacitor.
ServeRAID M5100 Series SSD Expansion Kit for IBM Flex System x220 (90Y4426) enables support
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for up to four internal 1.8-inch SSDs. This kit includes two air baffles, left and right, which can attach
two 1.8-inch SSD attachment locations and flex cables for attachment to up to four 1.8-inch SSDs.