Date: Wed, 7 May 2014 10:59:14 +0200 From: Borja Marcos <borjam@sarenet.es> To: freebsd-scsi@freebsd.org Subject: Testing new mpr driver Message-ID: <8A41AB90-AC2F-4200-91D6-3D3CF9E8A835@sarenet.es>
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Hi I just saw that there's a new driver for LSI3008 SAS3 cards. I have = updated a test system to -STABLE, installed one of those cards (in this = case, the OEM version sold by IBM as a HBA, with IT firmware). mpr0: <LSI SAS3008> port 0x3f00-0x3fff mem 0x912f0000-0x912fffff irq 32 = at device 0.0 on pci17 Excellent so far I have noticed a difference with the mps based LSI2008 = cards: in the same hardware configuration as my previous tests (except, = of course, the HBA) it seems to be faster. And I am using just one cable = to connect the HBA to the backplane instead of two, I didn't have = another cable available. <ATA Samsung SSD 840 BB0Q> at scbus0 target 25 lun 0 (pass0,da0) <ATA Samsung SSD 840 BB0Q> at scbus0 target 26 lun 0 (pass1,da1) <ATA Samsung SSD 840 BB0Q> at scbus0 target 27 lun 0 (pass2,da2) <ATA Samsung SSD 840 BB0Q> at scbus0 target 28 lun 0 (pass3,da3) <ATA Samsung SSD 840 BB0Q> at scbus0 target 29 lun 0 (pass4,da4) <ATA Samsung SSD 840 BB0Q> at scbus0 target 30 lun 0 (pass5,da5) <ATA Samsung SSD 840 BB0Q> at scbus0 target 33 lun 0 (pass6,da6) <ATA Samsung SSD 840 BB0Q> at scbus0 target 34 lun 0 (pass7,da7) <ATA Samsung SSD 840 BB0Q> at scbus0 target 35 lun 0 (pass8,da8) <IBM-ESXS SAS EXP BP 61A6> at scbus0 target 263 lun 0 = (pass9,ses0) <IBM-ESXS SAS EXP BP 61A6> at scbus0 target 288 lun 0 = (pass10,ses1) I have created a ZFS pool with the SSDs. With the LSI2008 based card I = needed to run several bonnie++ instances in parallel in order to = saturate the I/O bandwidth, and with this card a single instance reaches = peak performance.=20 Does it make sense at all? I assume that the driver could be considered almost production ready. Is = it going to be included in 9.3 as well, as the manpage states, or is it = a typo? Thanks! Borja.
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