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60 lines
2.8 KiB
60 lines
2.8 KiB
#!/bin/bash |
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# |
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# Configuration file for /etc/cron.weekly/raid-check |
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# |
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# options: |
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# ENABLED - must be yes in order for the raid check to proceed |
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# CHECK - can be either check or repair depending on the type of |
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# operation the user desires. A check operation will scan |
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# the drives looking for bad sectors and automatically |
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# repairing only bad sectors. If it finds good sectors that |
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# contain bad data (meaning that the data in a sector does |
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# not agree with what the data from another disk indicates |
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# the data should be, for example the parity block + the other |
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# data blocks would cause us to think that this data block |
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# is incorrect), then it does nothing but increments the |
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# counter in the file /sys/block/$dev/md/mismatch_count. |
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# This allows the sysadmin to inspect the data in the sector |
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# and the data that would be produced by rebuilding the |
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# sector from redundant information and pick the correct |
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# data to keep. The repair option does the same thing, but |
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# when it encounters a mismatch in the data, it automatically |
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# updates the data to be consistent. However, since we really |
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# don't know whether it's the parity or the data block that's |
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# correct (or which data block in the case of raid1), it's |
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# luck of the draw whether or not the user gets the right |
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# data instead of the bad data. This option is the default |
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# option for devices not listed in either CHECK_DEVS or |
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# REPAIR_DEVS. |
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# CHECK_DEVS - a space delimited list of devs that the user specifically |
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# wants to run a check operation on. |
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# REPAIR_DEVS - a space delimited list of devs that the user |
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# specifically wants to run a repair on. |
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# SKIP_DEVS - a space delimited list of devs that should be skipped |
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# NICE - Change the raid check CPU and IO priority in order to make |
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# the system more responsive during lengthy checks. Valid |
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# values are high, normal, low, idle. |
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# MAXCONCURENT - Limit the number of devices to be checked at a time. |
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# By default all devices will be checked at the same time. |
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# |
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# Note: the raid-check script intentionaly runs last in the cron.weekly |
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# sequence. This is so we can wait for all the resync operations to complete |
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# and then check the mismatch_count on each array without unduly delaying |
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# other weekly cron jobs. If any arrays have a non-0 mismatch_count after |
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# the check completes, we echo a warning to stdout which will then me emailed |
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# to the admin as long as mails from cron jobs have not been redirected to |
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# /dev/null. We do not wait for repair operations to complete as the |
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# md stack will correct any mismatch_cnts automatically. |
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# |
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# Note2: you can not use symbolic names for the raid devices, such as you |
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# /dev/md/root. The names used in this file must match the names seen in |
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# /proc/mdstat and in /sys/block. |
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ENABLED=yes |
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CHECK=check |
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NICE=low |
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# To check devs /dev/md0 and /dev/md3, use "md0 md3" |
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CHECK_DEVS="" |
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REPAIR_DEVS="" |
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SKIP_DEVS="" |
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MAXCONCURRENT=
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