Netbackup Appliance Slow Rehydration to tape and bad backup performance
Help! Netbackup Appliances 5230 126.96.36.199. One of our appliances houses ms-standard windows all local drives backups and vmware snapshot backups. Backups run at good speeds however as soon as we start our slps to copy the data from the msdp to tape the backups get extremely slow to barely moving and the copy to tape is slow. As soon as we kill off the slps backup speed goes back up again. We have a case opened and backline engineers have taken a look and we were told that is expected as the rehydration process tapeouts is slowing things down. We turned our max concurrent write drives to 4 and set our slp schedule to daytime to not affect nighttime backups however with these settings we will never get the month-end to tape done.
We thought of a couple other options
1. backup to advanced disk then slp to msdp and or tape-issue here is we would need to buy more trays but even more important I think we would lose some features in Netbackup. last I checked netbackup accelerator doesnt work to advanced disk(I need to double-check)
2. inline tape copies-during month-end use inline tape copies to backup to msdp and tape, issue is speed will be run as the slowest backup between the two but that might be okay if the speed is good.
Does anyone have any suggestions on this and been through this? Thanks.