I have a HP ProLiant DL380p Gen8 server running Ubuntu 14.04.1 LTS. During the installation I had setup RAID 1+0(which I believe is same as RAID 10?):

hpssacli ctrl all show config Smart Array P420i in Slot 0 (Embedded) (sn: 00143803246ED20) array A (SAS, Unused Space: 0 MB) logicaldrive 1 (838.1 GB, RAID 1+0, OK)

  physicaldrive 1I:2:1 (port 1I:box 2:bay 1, SAS, 300 GB, OK)
  physicaldrive 1I:2:2 (port 1I:box 2:bay 2, SAS, 300 GB, OK)
  physicaldrive 1I:2:3 (port 1I:box 2:bay 3, SAS, 300 GB, OK)
  physicaldrive 1I:2:4 (port 1I:box 2:bay 4, SAS, 300 GB, OK)
  physicaldrive 2I:2:5 (port 2I:box 2:bay 5, SAS, 300 GB, OK)
  physicaldrive 2I:2:6 (port 2I:box 2:bay 6, SAS, 300 GB, OK)

SEP (Vendor ID PMCSIERA, Model SRCv8x6G) 380 (WWID: 500143803246ED2F)

The server is now running out of space and I would like to add more disks to it. Is it possible to do this without any down time? Can I just replace one disk at a time with a higher capacity one and once I am done replacing them all, just expand the file system(not sure which command to use here)?

If this is not possible, what are my options?


You can add physical disks to the array if you wish. That can be completed without downtime. You can also replace the drives with larger disks one-by-one.

This is all covered in the HP Smart Array Controllers reference guide...

Also see:

HP RAID array - hpacucli

What are the good ways to migrate a RAID array to bigger disks?

Reconfigure HP Smart Array RAID 50 with larger drives

Extend RAID 1 (HP SmartArray P410i) running Linux

Extend RAID 5 to use unused space and add additional disks?

  • Thanks! I think I will have to replace the drives with larger disks one-by-one. because we only have 2 free bays on the server and that's not going to be enough. The question is once I replace them all do I have to manually re-configure HP Smart Array or will it be detected and configured automatically so that I only have to resize the LVM manually? – Debianuser Jan 12 '16 at 3:03
  • Read the manual or any of the links I posted for details. – ewwhite Jan 12 '16 at 3:04

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