Drive Types And Sizes Supported; Encs-Mraid Drive And Predictive Failure Behavior; Setting The Preferred Boot Device Order For Encs-Mraid; Mixing Drive Types In Raid Groups - Cisco 5400 ENCS Hardware Installation Manual

Supported RAID Controllers and Required Cables

Drive Types and Sizes Supported

• 480GB 2.5" SATA SSD (ENCS-SSD-480G)
• 960GB 2.5" SATA SSD (ENCS-SSD-960G)
• 1TB 2.5" SATA HDD (ENCS-SATA-1T)
• 2TB 2.5" SATA HDD (ENCS-SATA-2T)
• 1.2TB SAS HDD (ENCS-SAS-12T)
• 1.8TB SAS HDD (ENCS-SAS-18T)
• 1.2TB SED SAS HDD (ENCS-SED-12T)

ENCS-MRAID Drive and Predictive Failure Behavior

• Good drive handling:
• Bad/invalid/0MB drive handling:
• Drive predictive failure:

Setting the Preferred Boot Device Order for ENCS-MRAID

The default boot device is internal SSD, disks connected to RAID card are only used as external datastores
for VM images.
Refer to BIOS Boot order procedures to select the right boot device and make order of RAID adapter as low
as possible.

Mixing Drive Types in RAID Groups

The following table lists the technical capabilities for mixing hard disk drive (HDD) and solid state drive
(SSD) types in a RAID group. However, see the recommendations that follow for the best performance.
• The physical drive is marked GOOD in the GUI/CLI interfaces and fault LED on the drive is off.
• The virtual drive (RAID volume group) is marked GOOD in GUI/CLI interface. There is no LED
for this.
• The bad drive is marked BAD in the GUI/CLI interfaces and the fault LED on the drive is solid
amber.
• If the drive is part of a RAID volume with a spare, the software performs an auto-copy backup and
then marks the drive failed/BAD with the fault LED on the drive solid amber.
Cisco 5400 Enterprise Network Compute System Hardware Installation Guide
Drive Types and Sizes Supported
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