May 7, 201313 yr I started a preclear on a WD 3TB RED drive that I intended to rebuild my array with. However I should have checked whether or not 4.7 is compatible with 3TB drives which I now find it is not. I have three questions. a) Am I wasting my time running the preclear on the drive? b) It is connected to the SM MV8 8 port controller, as the systems seems to see the drive as 3TB does that mean that my hardware is compatible? c) When I try to run the preclear_disk.sh -t /dev/sdX to see the if the pre-clear signature exists it states that the "SMART status command failed" and a "mandatory SMART command failed" is this because the preclear is already running? Ridley
May 7, 201313 yr It indicates your disk controller does not allow a smart report to be gotten on that disk. Your hardware may not be that compatible, or, to get a smart report might take special options. Joe L.
May 7, 201313 yr Author Could it be that smartctl is out of date? ********* smartctl 5.39.1 2010-01-28 r3054 [i486-slackware-linux-gnu] (local build) Copyright © 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net === START OF INFORMATION SECTION === Device Model: WDC WD30EFRX-68AX9N0 Serial Number: WD-WMC1T2953221 Firmware Version: 80.00A80 User Capacity: 3,000,592,982,016 bytes Device is: Not in smartctl database [for details use: -P showall] ********* As it seems to be a version from 2010 and the drive is not in the database?
May 8, 201313 yr a) Am I wasting my time running the preclear on the drive? No. It never hurts to thoroughly test a new drive You won't, of course, be able to use it without upgrading to v5 -- unless you use HDat2 to set the MaxSize parameter so it "looks" like a 2TB drive (Not what I'd recommend -- upgrading to v5 is a much better idea). [http://www.hdat2.com/ ] b) It is connected to the SM MV8 8 port controller, as the systems seems to see the drive as 3TB does that mean that my hardware is compatible? Yes -- otherwise it wouldn't see it as a 3TB drive. c) When I try to run the preclear_disk.sh -t /dev/sdX to see the if the pre-clear signature exists it states that the "SMART status command failed" and a "mandatory SMART command failed" is this because the preclear is already running? I defer to Joe L on this, but it seems likely that one of the two reasons you've suggested may in fact be the cause of this -- a conflict due to an already-running process; or an out-of-date smartctl
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