August 19, 201213 yr Morning All, After a rebuild of my unRaid box I'm seeing extremely slow performance when using the cache drive (Seagate 7200RPM 1TB). In fact, the write speeds directly to the array are about 3x faster than write speeds when using a cache drive (28mbps vs 8mbps). I've tried sharing out the cache drive and writing directly to it, and I'm seeing speeds in excess of 90mbps... so that leads me to believe it's not the drive itself. Nothing is showing in the logs, and nothing concerning in the smart reports. Has anybody else seen this behavior before? And better yet, anybody have a fix? Thanks!
August 19, 201213 yr Author What are the system specs? Dammit, sorry! I thought I had my system specs in my sig... to many forums Anyways, as requested --> CPU --> Intel Xeon 1230 v2 RAM --> 24GB of KVR1333D3E9S Mobo --> SUPERMICRO MBD-X9SCM-F-O Storage Controller --> 2x SUPERMICRO AOC-SASLP-MV8 PCI Express x4 Hard Drives --> a mix of Hitachi's and Western Digitals OS --> unRaid 4.7 Pro running on ESXi 5.0 U1 Cheers!
August 19, 201213 yr Author Attach a syslog and a SMART report for the drive. As requested... smart_report.txt syslog_athena.txt
August 19, 201213 yr See the warning in the SMART report. ==> WARNING: There are known problems with these drives, AND THIS FIRMWARE VERSION IS AFFECTED, see the following Seagate web pages: http://seagate.custkb.com/seagate/crm/selfservice/search.jsp?DocId=207931 http://seagate.custkb.com/seagate/crm/selfservice/search.jsp?DocId=207951
August 19, 201213 yr Author I had already started to look into that, but unfortunately both links give a 404 error.
August 19, 201213 yr I had already started to look into that, but unfortunately both links give a 404 error. They changed the support system, now you have to use your model and serial number to request the firmware update. I don't have the link, sorry.
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