Hi all, I am using Amanda to take backup weekly & monthly. For monthly backup which is 2.5 to 2.7TB in size after backup with compression, it take 4-5 days. (Total size is around 6-7 TB, and there 52 entries DLEs, from 10 different host in network. I am backuping on NAS, where I have 19T total space.) Off course there are various parameter we have to consider to claim whether it is slow process or not. Could you please let me know how should I check and compare whether my backup process is slow or not ? Which are main parameter which affect Amanda Performance ? Which tool I should use to check Amanda Performance ? Currently I am using following steps:
1. I have started monthly backup. 2. Using bandwidth monitoring tools i.e. ntop, bmon I am checking Backup Server to NAS bandwidth usage & trafic status. 3. Using iotop I am checking status / speed of io operation. 4. There are other few tools, which may help to understand io, had disk usage. But as my backup directory is not a local device, (I have mounted as nfs directory) I can't run hdparm or iostat directly. 5. Monitoring NAS's admin interface for its bandwidth usage. 6. Currently I am checking for some spastics, which help to compare with my current setup. Still I can't understand whether I going right way or not ! It will be if you help me here. -- Regards Amit Karpe. http://www.amitkarpe.com/ http://news.karpe.net.in/
