Originally posted by: SystemAdmin
Thanks for that.
I've managed to make some progress, but I'm not certain if there are any issues with the method I used.
I setup the DS4300 with the Storate Manager Client and used the wizard to setup RAID 5. It created 3 arrays containing 4 disks each and allocated two hot spares. Each of the arrays are just over 200 GB each. The server recognizes the arrays as:
hdisk4
hdisk5
hdisk6
I then created a volume group called vg0 that uses hdisk4:
-
VOLUME GROUP name vg0
-
Activate volume group AUTOMATICALLY yes +
at system restart?
-
A QUORUM of disks required to keep the volume yes +
group on-line ?
Convert this VG to Concurrent Capable? no +
Change to big VG format? no +
Change to scalable VG format? no +
LTG Size in kbytes 128 +
Set hotspare characteristics n +
Set synchronization characteristics of stale n +
partitions
Max PPs per VG in kilobytes 32 +
Max Logical Volumes 256
I then created a volume called lv03 under volume group vg0 mounted as /u3:
Logical volume TYPE
jfs +
POSITION on physical volume middle +
RANGE of physical volumes minimum +
MAXIMUM NUMBER of PHYSICAL VOLUMES
32 #
to use for allocation
Allocate each logical partition copy yes +
on a SEPARATE physical volume?
RELOCATE the logical volume during yes +
reorganization?
Logical volume LABEL [/u3]
MAXIMUM NUMBER of LOGICAL PARTITIONS
512 #
SCHEDULING POLICY for reading/writing parallel +
logical partition copies
PERMISSIONS read/write +
Enable BAD BLOCK relocation? yes +
Enable WRITE VERIFY? no +
Mirror Write Consistency? active +
Serialize IO? no
I hit a snag with the log, but I managed to sort that out and the next snag was working out that I needed to create a file system of the JFS type on lv03.
That seemed to go off without a hitch and I used the following entry in /etc/filesystems to mount it:
/u3:
dev = /dev/lv03
vfs = jfs
log = /dev/loglv01
mount = true
check = false
options = rw
account = false
I increased the /u3 system from 128 MB to 64 GB manually and I now get the following with the df -g command:
Filesystem GB blocks Free %Used Iused %Iused Mounted on
/dev/hd4 0.12 0.11 13% 1858 7% /
/dev/hd2 1.25 0.26 80% 24966 29% /usr
/dev/hd9var 0.12 0.11 9% 378 2% /var
/dev/hd3 0.12 0.12 2% 43 1% /tmp
/dev/fwdump 0.12 0.12 1% 4 1% /var/adm/ras/platform
/dev/hd1 0.12 0.12 1% 30 1% /home
/proc - - - - - /proc
/dev/hd10opt 0.62 0.13 80% 17843 37% /opt
/dev/lv03 64.00 61.99 4% 17 1% /u3
I'll do some more research to make sure there will be no issues down the road, but it seems to be inline with everything I've read so far.
Thanks
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