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lbaops:lbaobservingnotes:parkesclean [2009/07/03 15:05]
cehotan
lbaops:lbaobservingnotes:parkesclean [2015/12/18 16:38] (current)
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 - [[.:#​redetect | Redetect]] devices to refresh the number of slices and disk size.\\ - [[.:#​redetect | Redetect]] devices to refresh the number of slices and disk size.\\
 - Change the number of [[.:#​reslice | slices ]] on a set of disks.\\ - Change the number of [[.:#​reslice | slices ]] on a set of disks.\\
-- [[.:#​rebuild | Rebuild]] a degraded array.\\ 
 - Put a new [[.:#​repartition | partition]] or partition table on some disks (after reslicing, or because there was a problem).\\ - Put a new [[.:#​repartition | partition]] or partition table on some disks (after reslicing, or because there was a problem).\\
 - [[.:#​reformat | Reformat]] disks so they are clean for the upcoming run.\\ - [[.:#​reformat | Reformat]] disks so they are clean for the upcoming run.\\
 +- [[.:#​rebuild | Rebuild]] a degraded array.\\
 The most common, of course, is simply reformatting.\\ The most common, of course, is simply reformatting.\\
 \\ \\
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 /​dev/​sdc1 ​            ​2.7T ​ 202M  2.7T   1% /​data/​xraid0 /​dev/​sdc1 ​            ​2.7T ​ 202M  2.7T   1% /​data/​xraid0
 /​dev/​sdd1 ​            ​2.7T ​ 202M  2.7T   1% /​data/​xraid1</​code>​ /​dev/​sdd1 ​            ​2.7T ​ 202M  2.7T   1% /​data/​xraid1</​code>​
-%color=#​006600%Make note of device names - /dev/sdc1 is /​data/​xraid0.**+%color=#​006600%Make note of device names - /dev/sdc1 is /​data/​xraid0.**\\
 <​code>​pkvsi1:​~#​ umount /​data/​xraid0</​code>​ <​code>​pkvsi1:​~#​ umount /​data/​xraid0</​code>​
 %color=#​006600%Check that the disk sets already contain labels (which ideally should be correct, you can check that they are during formatting and change afterward with ''​e2label''​ if necessary.**\\ %color=#​006600%Check that the disk sets already contain labels (which ideally should be correct, you can check that they are during formatting and change afterward with ''​e2label''​ if necessary.**\\
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 ''​followed by mounting the disks and running ''​chown vlbi:vlbi /​dev/​sdc1''​ - This means we use ext2 format, but the -j means Journalling,​ so it's actually ext3 format. This isn't the most efficient format, but the journalling is good if accidents happen with disk removal! -m 0 means don't reserve space for root, and -L allows us to specify the disk volume label, and we want the disks to be owned by the group VLBI.\\ ''​followed by mounting the disks and running ''​chown vlbi:vlbi /​dev/​sdc1''​ - This means we use ext2 format, but the -j means Journalling,​ so it's actually ext3 format. This isn't the most efficient format, but the journalling is good if accidents happen with disk removal! -m 0 means don't reserve space for root, and -L allows us to specify the disk volume label, and we want the disks to be owned by the group VLBI.\\
 \\ \\
-Repeat for as many disk sets as necessary - can do up to 4 at a time with two chassis (two on pkvsi1 and two on pkvsi2). When all 4 are done (or as many as necessary), run 'df -h' again to check that your devices are mounted, are ~2.7TB and have ~202MB / 1% used, the rest available.\\+Repeat for as many disk sets as necessary - can do up to 4 at a time with two chassis (two on pkvsi1 and two on pkvsi2). When all 4 are done (or as many as necessary), run ''​'df -h''​' again to check that your devices are mounted, are ~2.7TB and have ~202MB / 1% used, the rest available.\\
 \\ \\
 [[.:#​rebuild]] [[.:#​rebuild]]
lbaops/lbaobservingnotes/parkesclean.txt · Last modified: 2015/12/18 16:38 (external edit)