115 lines
3.6 KiB
Plaintext
115 lines
3.6 KiB
Plaintext
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?? Allow -S /dev/md? - current complains subsequent not a/d/r - DONE
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* new "Query" mode to subsume --detail and --examine.
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--query or -Q, takes a device and tells if it is an MD device,
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and also tells in a raid superblock is found.
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DONE
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* write mdstat.c to parse /proc/mdstat file
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Build list of arrays: name, rebuild-percent
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DONE
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* parse /proc/partitions and map major/minor into /dev/* names,
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and use that for default DEVICE list ????
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* --detail --scan to read /proc/mdstat, and then iterate over these,
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but assume --brief. --verbose can override
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check each subdevice to see if it is in conf_get_devs.
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Warn if not.
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DONE, but don't warn yet...
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* Support multipath ... maybe...
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maybe DONE
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* --follow to syslog
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* --follow to move spares around
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* --follow to notice other events:
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rebuild started
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spare activated
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spare removed
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spare added
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------------------------------------
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- --examine --scan scans all drives and build an mdadm.conf file DONE
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- check superblock checksum in examine DONE
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- report "chunk" or "rounding" depending on raid level DONE
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- report "linear" instead of "-1" for raid level DONE
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- decode ayout depending on raid level DONE
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- --verbose and --force flags. DONE
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- set md_minor, *_disks for Create - DONE
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- for create raid5, how to choose between
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all working, but not insync
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one missing, one spare, insync DONE (--force)
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- and for raid1 - some failed drives... (missing)
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- when RUN_ARRAY, make sure *_disks counts are right
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- get --detail to extract extra stuff from superblock,
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like uuid DONE
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- --detail --brief to give a config file line DONE
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- parse config file. DONE
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- test...
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- when --assemble --scan, if an underlying device is an md device,
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then try to assemble that device first.
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- mdadm -S /dev/md0 /dev/md1 gives internal error FIXED
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- mdadm --detail --scan print summary of what it can find?
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---------
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Assemble doesn't add spares. - DONE
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Create to allow "missing" name for devices.
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Create to accept "--force" for do exactly what is requested
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- get Assemble to upgrade devices if force flag.
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ARRAY lines in config file to have super_minor=n
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ARRAY lines in config file to have device=pattern, and only accept
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those devices
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If UUID given, insist on that
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If not, but super_minor given, require all found with that minor
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to have same uuid
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If only device given, all valid supers on those devices must have
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same uuid
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allow /dev/mdX as first argument before any options
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Possible --dry-run option for create and assemble--force
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Assemble to check that all devices mentioned in superblock
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are present.
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New mode: --Monitor (or --Follow)
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Periodically check status of all arrays (listed in config file).
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Log every event and apparent cause - or differences
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Email and alert - or run a program - for important events
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Move spares around if necessary.
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An Array line can have a spare-group= field that indicates that
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the array shares spares with other arrays with the same
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spare-group name.
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If an array has a failed and no spares, then check all other
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arrays in the spare group. If one has no failures and a spare,
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then consider that spare.
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Choose the smallest considered spare that is large enough.
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If there is one, then hot-remove it from it's home, and
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hot-add it to the array in question.
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--mail-to address
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--alert-handler program
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Will also extract information from /proc/mdstat if present,
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and consider 20% marks in rebuild as events.
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Events are:
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drive fails - causes mail to be sent
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rebuild started
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spare activated
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spare removed
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spare added
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