Hi,
I'm in the process of installing (so fortunately can reformat, rinse, repeat as necessary) a new Dell PowerVault attached to a PowerEdge running RHEL3.
I'm looking to have the facility to be able to grow the RAID arrays at a later date. The Dell PERC 4/DC card installed supports growing the RAID array, however since I created the physical volume to utilise the whole disk it hasn't seen the growth in the PV:
[root@nbg01-filer-01 root]# pvdisplay /dev/sdb --- Physical volume --- PV Name /dev/sdb VG Name splitbus0 PV Size 546.48 GB [1146060800 secs] / NOT usable 32.25 MB [LVM: 196 KB] PV# 1 PV Status NOT available Allocatable yes (but full) Cur LV 1 PE Size (KByte) 32768 Total PE 17486 Free PE 0 Allocated PE 17486 PV UUID duXmrI-c1d0-pPew-VNL4-ce6N-5h14-6swMqK
However lvmdiskscan recognises that the disk has grown in capacity:
[root@nbg01-filer-01 root]# lvmdiskscan lvmdiskscan -- reading all disks / partitions (this may take a while...) ... lvmdiskscan -- /dev/sdb [ 683.11 GB] USED LVM whole disk
> ...
Looking at the lists I realise that extending the physical volumes isn't supported yet.
So, to ask my question (about time too I hear you say), what advice would you give me in order to achieve expandability of the RAID array at a later date when we have filled existing capacity?
Should I partition /dev/sdb before I create the physical volume and then partition any new space which is added and then add those partitions to the volume group? Or is there some more clever way to do it?
Cheers,
Dg. -- David Grierson Lumison t: 0845 1199 900 d: +44 131 514 4053 --
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