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Difference between revisions of "Megaraid SAS"
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These | These The MegaRAID SAS controllers re called Percraid on Dell Poweredge servers. They use the MegaCLI utility, which is described here. | ||
== MegaCLI == | == MegaCLI == | ||
This to show what virtual disks are present. This describes a system with a pair of 300GB SAS 15k rpm disks holding the OS, an array of four 1TB drives and a pair modern 20TB drives, forming a 300GB OS drive, a 20TB data drive and a 3TB additional storage drive. | This to show what virtual disks are present. This describes a system with a pair of 300GB SAS 15k rpm disks holding the OS, an array of four 1TB drives and a pair modern 20TB drives, forming a 300GB OS drive, a 20TB data drive and a 3TB additional storage drive. | ||
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Exit Code: 0x00</nowiki> | Exit Code: 0x00</nowiki> | ||
One of the 300GB SAS drives (for the OS) is reporting a [ | One of the 300GB SAS drives (for the OS) is reporting a [https://techterms.com/definition/smart SMART] error. This disk should be replaced before it fails. | ||
=== Disk swap === | |||
This is where the disk is swapped over. Once the new disk is inserted it rebuilds itself. | |||
<nowiki># megacli -pdoffline -physdrv[32:5] -a0 | |||
Adapter: 0: EnclId-32 SlotId-5 state changed to OffLine. | |||
Exit Code: 0x00 | |||
# megacli -pdmarkmissing -physdrv[32:5] -a0 | |||
EnclId-32 SlotId-5 is marked Missing. | |||
Exit Code: 0x00 | |||
# megacli -pdprprmv -physdrv[32:5] -a0 | |||
Prepare for removal Success | |||
Exit Code: 0x00 | |||
</nowiki> | |||
=== Check the rebuild === | |||
You can see how the rebuild is progressing like this: | |||
<nowiki># megacli -PDRbld -ShowProg -PhysDrv[32:5] -a0 | |||
Rebuild Progress on Device at Enclosure 32, Slot 5 Completed 7% in 8 Minutes.</nowiki> | |||