RAID: Difference between revisions
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*[http://www.raid-calculator.com/raid-types-reference.aspx Raid Calculator] | *[http://www.raid-calculator.com/raid-types-reference.aspx Raid Calculator] | ||
*[https://kb.open-e.com/information-on-configuring-for-optimal-raid-performance_1323.html https://kb.open-e.com/information-on-configuring-for-optimal-raid-performance_1323.html] | *[https://kb.open-e.com/information-on-configuring-for-optimal-raid-performance_1323.html https://kb.open-e.com/information-on-configuring-for-optimal-raid-performance_1323.html] | ||
*[https://magj.github.io/raid-failure/ raid failure calculator] | |||
'''ACHTUNG''' don't forget block/partition alignment! | '''ACHTUNG''' don't forget block/partition alignment! | ||
Revision as of 15:54, 27 September 2023
Redundant Array of Inexpensive Disks
- http://en.wikipedia.org/wiki/RAID
- Linux Software Raid
- Raid Calculator
- https://kb.open-e.com/information-on-configuring-for-optimal-raid-performance_1323.html
ACHTUNG don't forget block/partition alignment!
Cache settings
write through
write back
always write back
HOWTO
Remove raid metadata from disk
DISK=/dev/sdc # the last bit dd if=/dev/zero of=$DISK bs=512 seek=$(( $(blockdev --getsz $DISK) - 1024 )) count=1024 # the first bit dd if=/dev/zero of=$DISK bs=512 count=1
FAQ
BBU
Relative State of Charge
Should be well above 90%
