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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?

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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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