Hi, The jumbo-frames in my case give me a boost of around 2 mb/s, so it's not that much. Now i will play with link aggregation and see how it goes, and of course i'm counting that incremental replication will be slower...but since the amount of data would be much less probably it will still deliver a good performance.
And what a relief to know that i'm not alone when i say that storage management is part science, part arts and part "voodoo magic" ;) Cheers, Bruno On 25-3-2010 23:22, Ian Collins wrote: > On 03/26/10 10:00 AM, Bruno Sousa wrote: > > [Boy top-posting sure mucks up threads!] > >> Hi, >> >> Indeed the 3 disks per vdev (raidz2) seems a bad idea...but it's the >> system i have now. >> Regarding the performance...let's assume that a bonnie++ benchmark >> could go to 200 mg/s in. The possibility of getting the same values >> (or near) in a zfs send / zfs receive is just a matter of putting , >> let's say a 10gbE card between both systems? > > Maybe, or a 2x1G LAG would me more cost effective (and easier to > check!). The only way to know for sure is to measure. I managed to > get slightly better transfers by enabling jumbo frames. > >> I have the impression that benchmarks are always synthetic, therefore >> live/production environments behave quite differently. > > Very true, especially in the black arts of storage management! > >> Again, it might be just me, but with 1gb link being able to replicate >> 2 servers with a average speed above 60 mb/s does seems quite good. >> However, like i said i would like to know other results from other >> guys... >> > As I said, the results are typical for a 1G link. Don't forget you > are measuring full copies, incremental replications may well be > significantly slower. > > -- > Ian. > > > -- > This message has been scanned for viruses and > dangerous content by *MailScanner* <http://www.mailscanner.info/>, and is > believed to be clean.
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