Netbackup 7.6.0.4, Windows 2008r2 Master and media servers, DataDomian dd4200 DDOS 5.4.4.1
Hello all.
Because I've been researching this issue, I can see that it has already been beaten to death, but I may be having a different issue. We have an nfs share on our Isilon that data is sent to, to the tune of about 500,000 to 700,000 transactions per day. These are small files, several KB in size. I back this share up to DataDomain each day. But, the data they need is spread across 3 months, and I cant even restore a day's worth with any performace. Here is a sample in which one of my *faster* attempts took 113 hours to restore 15gb of data. This was 1 days worth of data! I've read about others having issues with slow NDMP restore performance, but they typically mention 5 to 20MB/s restore rates. I'm maxing out at 42KB/s! They want me to restore the needed folders by month, and then they will use a script to extract the files they need. I've even tried selecting each file individually, but once I click on one file in the BAR, either Netbackup takes 3 to 5 minutes to respond, OR the BAR gui just freezes and greys out. Plus, of the millions of files I'm needing to restore, they only need about 1500 specific ones, so selecting them individually isnt really an option either. I thought maybe it was DataDomain causing the issue, so I recalled a copy of the same data from tape, and the performance appears to be about the same. Any ideas as to what this might be? I've not seen anyone having restore issues this slow, and my data is essentially trapped. I regularly perform restores of data that lives on the same Isilon unit, without issue, so I'm sure the issue relates to the sheer number of files, so I guess I'm looking for a way to deal with that and get my data.
Thanks all!
Todd