Hello,
DP CM = 7.00 with all latest patches 7.03
CM Platforms = WIndows 2008 R2, ProLiant DL360 G7
Physical Memory = 4GB
Client1 = HP-UX 11.31 with all latest patches of 7.03 ( Total 3 server same model)
Client serevr = BL860c
Client2 = HP-UX 11.31 with all latest patches of 7.03
Client server = BL860c i2
Tape Library= "HP:1x8 G2 AUTOLDR_mpfbackup
Device = HP:Ultrium 4-SCSI_1_mpfbackup
All the HP-UX server are having LUNs from EMC storage new in the enviornemnt. Database is migrated to EMC storage from earlier of HP LEFT HAND ISCSI Storage.
All the4 HP-UX servers are connected through SAN switch to EMC storage.
Now the issues is I am getting here the backup on three BL860c servers as very slow; backup speed of 13MB/S and restore speed of 6MB/S
where as the backup speed on BL860c i2 server is 40MB/S and Restore speed also is 40MB/S.
Earleir when we were using the left hand storage the speed was almost same as it is currently now in BL860c i2, but after migrating to EMC there is a very huge performance issues on all 3 servers where as 4th server having different model is perfect.
I checked from the fc HBA, updated the fc HBA driver and firmware, firmware of Tape library. Tested with a null backup of BL860c server it is giving 23MB/S where as BL860c i2 is giving 40MB/S but there is no difference in configuration between these servers except hardware model.
Any help where to look into this to resolve the issues. It's impacting our backup windows alot and increase the time almost double than earlier.
Many thanks for help in advance.
Please let me know if any logs needed from my side.
Regards,