Yorgo Posted December 23, 2014 Share Posted December 23, 2014 I believe the answer is "yes" but would like confirmation before proceeding... Can one stop an array while a pre-clear is in process without terminating pre-clear? I would like to transition one of my array drives from RFS to XFS which requires stopping the array but I'm in the middle of a looooong pre-clear of a 6TB drive (USB via SNAP) which I'd prefer to not terminate. TIA, Y Link to comment
interwebtech Posted December 23, 2014 Share Posted December 23, 2014 preclear runs on drive(s) outside the array. The drive being precleared is not as member of the array so stop/starts of array won't affect it. Link to comment
interwebtech Posted December 23, 2014 Share Posted December 23, 2014 PS. by USB? Argh that will take a long time. Just finished a single run on a 6Gbps motherboard port still took 40 hours == Last Cycle's Pre Read Time : 14:30:58 (114 MB/s) == Last Cycle's Zeroing time : 10:10:58 (163 MB/s) == Last Cycle's Post Read Time : 14:56:29 (111 MB/s) == Last Cycle's Total Time : 39:39:26 Link to comment
Brucey7 Posted December 23, 2014 Share Posted December 23, 2014 Took my 90 hours to preclear 3 of WD RED 6TB drives at the same time with 3 cycles and the faster preclear script Link to comment
trurl Posted December 23, 2014 Share Posted December 23, 2014 I believe the answer is "yes" but would like confirmation before proceeding... Can one stop an array while a pre-clear is in process without terminating pre-clear? I would like to transition one of my array drives from RFS to XFS which requires stopping the array but I'm in the middle of a looooong pre-clear of a 6TB drive (USB via SNAP) which I'd prefer to not terminate. TIA, Y Is the drive you want to change from RFS to XFS empty? Changing file systems will format the drive. Link to comment
Yorgo Posted December 23, 2014 Author Share Posted December 23, 2014 Thank you for confirming, interwebtech. Yes, long pre-clear time indeed; 50% through Post Read, 144+ hours. I didn't need the drive immediately and figured this would be a good way to "test" it anyway. Is the drive you want to change from RFS to XFS empty? Changing file systems will format the drive. Thanks, trurl. Yes, all data has been transferred off the drive. Been successful twice before moving from RFS to XFS just haven't tried it during a pre-clear. Y Link to comment
SCSI Posted December 24, 2014 Share Posted December 24, 2014 I hear you with the long preclear times. Currently using the faster preclear script preparing a 5TB via USB and I'm at 191:39:00 with 53% completed in the last step. 40 to 50 hours more to go? Link to comment
superloopy Posted December 29, 2014 Share Posted December 29, 2014 Preclearing a 6TB drive in a HP microserver has taken 53hrs per cycle ... x 3 = 160hrs = just under a week!! Link to comment
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