Informix OnBar Restore Slow using NetBackup
NetBackup Master Server :
Windows 2008 R2 , NetBackup 22.214.171.124
AIX 7.1 , NetBackup 126.96.36.199
I have configure informix onbar backup policy which running fine, and i get around 100MB/s. The onbar is doing whole system backup on informix, then i test restore back to the server ( Server still in testing mode, which have some data around 24 GB ), the restore works but i only have around 4MB/s.
All backup and restore is to NetBackup master basic disk storage units, transport LAN.
i took me 20 mins to backup but 1hr30mins to restore.
i test backup standard file level of the informix server which i get around 90MB/s backup speed and around 60MB/s restore speed. So i believe there is no network io or disk io which cause the informix to be that slow.
i check the bptm logs, i got this read_data: waited for empty buffer 70772 times, delayed 253628 times from one of the 18GB dbspace restore, why i go so high delayed time ? why i dont get when i restore standard file level ?
Have i miss out some settings ?
Anyone have any idea ?