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03-30-2015 06:53 AM
03-30-2015 06:53 AM
P2000 G3, increase performance by replacing HDDs with SSDs ?
Hi,
We have a performance issue with a lvol in a P2000.
System is a 2-Node Serviceguard Cluster. It uses a lvol which is lvm-mirrored on 2 separate P2000 G3.
each of the P2000 presents a vdisk which consists of 6 500GB disks in a RAID5.
IO is very high (about 600 clients via Samba, and 80 clients via NFS)
I think we will really get a benefit if we swap the 6x 500GB HDD with
5x J9F38A HP MSA 800GB 12G SAS ME 2.5in EM SSD
Is this supported ? Is there a good chance that performance increases ?
here are some numbers (reading a 2,3GB depot File)
# ll hpux_11.31_QPK_03.2015.tar
-rwxrwxr-x 1 ntadmin ntusers 2335469056 Mar 24 16:20 hpux_11.31_QPK_03.2015.tar
# date; timex cat hpux_11.31_QPK_03.2015.tar >> /dev/null
Mon Mar 30 12:01:34 MESZ 2015
real 5:13.26
user 0.21
sys 8.38
# date; timex cat hpux_11.31_QPK_03.2015.tar >> /dev/null
Mon Mar 30 12:45:33 MESZ 2015
real 3:13.85
user 0.20
sys 7.20
# date; timex cat hpux_11.31_QPK_03.2015.tar >> /dev/null
Mon Mar 30 14:09:54 MESZ 2015
real 59.39
user 0.19
sys 7.17
# date; timex cat hpux_11.31_QPK_03.2015.tar >> /dev/null
Mon Mar 30 14:11:15 MESZ 2015
real 5:48.33
user 0.20
sys 8.51
# date; timex cat hpux_11.31_QPK_03.2015.tar >> /dev/null
Mon Mar 30 14:20:00 MESZ 2015
real 1:13.29
user 0.19
sys 7.68
# date; timex cat hpux_11.31_QPK_03.2015.tar >> /dev/null
Mon Mar 30 14:33:05 MESZ 2015
real 4:21.50
user 0.20
sys 7.13
Thanks Christian
- Tags:
- SSD