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тАО03-30-2009 06:24 AM - last edited on тАО05-25-2014 07:45 PM by Maiko-I
тАО03-30-2009 06:24 AM - last edited on тАО05-25-2014 07:45 PM by Maiko-I
Would someone please verify what the correct process would be to increase RAID5. We converted from a rp5470 to a rx6600 with the OS mirroed on one disk and have a 3 disk RAID5 configured. We purchased 3 more disks and HP came out and wasn't able to add all 3 disks at once so added that single disk.
This is the output from saconfig:
saconfig /dev/ciss4 -N |more:
******************* SmartArray RAID Controller /dev/ciss4 ********************
Auto-Fail Missing Disks at Boot = disabled
Cache Configuration Status = cache enabled
Cache Ratio = 25% Read / 75% Write
---------- PHYSICAL DRIVES ----------
Location Ct Enc Bay WWID Size Status
Internal 1I 1 4 0x5000c5000f34f155 146.8 GB OK
Internal 1I 1 3 0x5000c5000fc8999d 146.8 GB UNASSIGNED
Internal 1I 1 2 0x5000c5000fcbc5dd 146.8 GB UNASSIGNED
Internal 1I 1 1 0x5000c5000fcb8331 146.8 GB OK
Internal 2I 1 8 0x5000c5000f3d6679 146.8 GB OK
Internal 2I 1 7 0x5000c5000f3a1161 146.8 GB OK
Internal 2I 1 6 0x5000c5000f35ed29 146.8 GB OK
Internal 2I 1 5 0x5000c5000f2880d1 146.8 GB OK
---------- LOGICAL DRIVE 0 ----------
Device File = /dev/disk/disk3
RAID Level = 1+0
Size = 139979 MB
Stripe Size = 128 KB
Status = OK
Participating Physical Drive(s):
Ct Enc Bay WWID
2I 1 8 0x5000c5000f3d6679
2I 1 7 0x5000c5000f3a1161
Participating Spare Drive(s):
None
---------- LOGICAL DRIVE 1 ----------
Device File = /dev/disk/disk5
RAID Level = 5
Size = 279964 MB
Stripe Size = 16 KB
Status = OK
articipating Physical Drive(s):
Ct Enc Bay WWID
1I 1 4 0x5000c5000f34f155
1I 1 1 0x5000c5000fcb8331
2I 1 6 0x5000c5000f35ed29
2I 1 5 0x5000c5000f2880d1
Participating Spare Drive(s):
None
(EOF):
We have 2 more disks to add and then add them to the RAID5 setup. Would this be correct:
saconfig /dev/ciss4 -R5 -p 1I:1:3 -p 1I:1:2
saconfig /dev/ciss4 -E1 -p 1I:1:1 -p 1I:1:2 -p 1I:1:3
Also is a reboot required and will the above statements both add the disks into the RAID4 and expand vol group1. I apologize if this is something obvious, I have no formal training and have been in sys admin for a year so am basically with the help of man pages am teaching myself.
P.S. This thread has been moevd from Storage > Planning to HP-UX > sysadmin. - Hp Forum moderator
Solved! Go to Solution.
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тАО03-30-2009 06:46 AM
тАО03-30-2009 06:46 AM
SolutionThis command will reate a NEW logical drive!
# saconfig /dev/ciss4 -R5 -p 1I:1:3 -p 1I:1:2
To add a new disk to an existing drive (Example):
# saconfig /dev/ciss3 -E 1 -p 1:3
Logical drive 1 expanded from 3 to 4 physical drives
To extend the logical drive 1 (Example):
# saconfig /dev/ciss3 -E 1 -c 100
Logical drive 1 extended from 87.9 GB to 100 GB in capacity
Now it depends - with hp-ux 11.23 you need to deactivate the volume group in order to use vgmodify to adjust the LVM settings to the new size - wit a current 11.31 you can do this online.
Hope this helps!
Regards
Torsten.
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тАО03-30-2009 06:49 AM
тАО03-30-2009 06:49 AM
Re: RAID5
Expanding the Capacity of an Array
saconfig /dev/cissX -E
saconfig /dev/ciss4 -E 1 -p ...
Then:
Extending the Capacity of a Logical Drive
saconfig /dev/cissX -E
saconfig /dev/ciss4 -E 1 -c 682
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тАО03-30-2009 07:06 AM
тАО03-30-2009 07:06 AM
Re: RAID5
saconfig /dev/ciss4 -E 1 - p 1I:1:1
So to verify, I can do the following to add other 2 and increase RAID:
saconfig /dev/ciss4 -E 1 -p 1:2 -p 1:3
saconfig /dev/ciss4 -E 1 -c (gbsize)
I understand that you basically have 'n -1' size so we will have 6 146 g drives, would I be save to increase to 700G?
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тАО03-30-2009 07:08 AM
тАО03-30-2009 07:08 AM
Re: RAID5
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тАО03-30-2009 07:28 AM
тАО03-30-2009 07:28 AM
Re: RAID5
(Since HP did the saconfig -E with 3 args to the x:x:x is that a problem? Does it matter that ours weren't added in order(4 - 8 added before 1-3) Am ok to continue as below:
1)# saconfig /dev/ciss4 -E 1 -p 1:1 -p 1:2 - p 1:3
2)saconfig /dev/ciss4 -E 1 -c 430
I alwasy have problmes converting to gb -we have OS on 2 disks, want to inc vg01 from 286G to 700G, bdf below:
# bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 1048576 295736 747064 28% /
/dev/vg00/lvol1 1835008 316000 1507232 17% /stand
/dev/vg00/lvol8 8912896 1240072 7616880 14% /var
/dev/vg00/lvol7 15368192 7115768 8188008 46% /usr
/dev/vg00/lvol4 5242880 1413312 3799752 27% /tmp
/dev/vg00/lvol6 15368192 10631208 4700008 69% /opt
/dev/vg00/lvol5 131072 18944 111296 15% /home
/dev/vg01/lvol1 286654464 94516631 180129303 34% /datatel
DevFS 11 11 0 100% /dev/deviceFileSystem
#
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тАО03-30-2009 07:48 AM
тАО03-30-2009 07:48 AM
Re: RAID5
You see
Location Ct Enc Bay WWID Size Status
Internal 1I 1 3 0x5000c5000fc8999d 146.8 GB UNASSIGNED
This means
Controller 1I (capital i = internal)
Enclosure 1
Bay 3
so you specify a disk like this
-p 1I:1:3
My examples were from a sa6402, the notation is different.
Hope this helps!
Regards
Torsten.
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тАО03-30-2009 08:01 AM
тАО03-30-2009 08:01 AM
Re: RAID5
1)# saconfig /dev/ciss4 -E 1 -p 1I:1:1 -p 1I:1:2 - p 1I:1:3
2)# saconfig /dev/ciss4 -E 1 -c 430
There is no problem doing on fly? HP had problm trying to do multiples, is there a reason multiple drives wouldn't work (several -p entries vs a single -p)
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тАО03-30-2009 08:07 AM
тАО03-30-2009 08:07 AM
Re: RAID5
saconfig /dev/cissX -R
-p
[-s
... each drives needs a -p ... ;-)
Hope this helps!
Regards
Torsten.
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those who understand binary, and those who don't.
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тАО03-30-2009 08:50 AM
тАО03-30-2009 08:50 AM
Re: RAID5
'saconfig /dev/ciss4 -R5 -p 1I:1:3 -p 1I:1:2'
saconfig /dev/ciss4 -E1 -p 1I:1:1 -p 1I:1:2 -p 1I:1:3
Just finished both a hardware and software conversion so if I miss something you are more than likely right but I have the -p's - is that what you are referring to?