Firstly, I will say the 6400 is slow, I had one... Just for the fact you said 6400/msa30, I am sure your bottle neck lies there, but if you had good hardware throughout I would have these thoughts: 1. Trunking in switches set right wrt the trunk config in the adapter team? I've been blown away by what works (sort of) when things aren't right so it wasn't immediately obvious... 2. Use netperf for windows to see what actual bandwidth is between the hosts? Transferring files *does* not show this, if the target can't write as fast as the network, or the source can't read as fast as the network, you get the picture. 3. Maybe use IOZone or something else to gauge real disc throughput?
BTW, did this once work well? If so, I had a 6400 behind an MSA20 (An even bigger steaming pile of sh!t) and both the 6400's battery and one of the two bats in the chassis died without showing an error, it wasn't till I was in the hpacucli that I caught it... jlc -----Original Message----- From: Bill Humphries [mailto:[email protected]] Sent: Friday, September 03, 2010 12:35 PM To: NT System Admin Issues Subject: slow transfers:was MSA30 woes Okay, this one is making my head hurt. I'm still investigating why my 500gig backup is taking 80 hours. It looks like it isn't a disk i/o problem. It looks like I have extremely slow data transfers from the mail server to the backup server. Using perfmon on both machines shows no packet loss or errors. The switches think everything is hunky-dory. I even moved the two machines to the same physical switch and no change. While transferring a file from the mail server both NICs show 1% utilization. If I move data the other way I see 25-50% utlization and a proper transfer speed. I have stopped any antivirus services on both machines. What gives? What else should I be looking at? Thanks. Bill ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
