The exception is mdadm which is from the Fedora testing repo. Comment 28 Peter Bieringer The mirror must be constructed, eg. Use “reboot” to see any differences: Standard on Intel Z68 -based motherboards. If you specify a 4 kB chunk size, and write 16 kB to an array of three disks, the RAID system will write 4 kB to disks 0, 1 and 2, in parallel, then the remaining 4 kB to disk 0. Comment 17 Peter Bieringer
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Comment 35 Jes Sorensen Comment 16 Harald Hoyer The fact that you hit this problem during normal reboot, makes me think it could be related to the unrolling back to the initramfs bug that we have discussed in other BZs.
RAID setup – Linux Raid Wiki
Comment 38 Harald Hoyer While looking well on “halt” no such problems shown like shown in screenshot, but after pushing reset button – while BIOS tells still raid status normal, resync starts again. If you want to access all the latest and upcoming features such as fully named RAID arrays so you no longer have to memorize which imssm goes where, you’ll want to make sure to use persistent metadata in the version 1. Growshrink or otherwise reshape an array in some way. You might have to disable plymouth to see the console output: The references used may be made clearer with a different or consistent style of citation and footnoting.
As always, you may want to experiment with this or check out our Performance page. Normalno resync was triggered. The parity calculation itself imsk extremely efficient, so while it does of course load the main CPU of the system, this impact is negligible.
The load caused by disk activity at the block group beginnings spreads over all disks.
– mdadm starts resync on imsm raid even in Normal state
This article has an unclear citation style. Anyone know if XEN works with mdadm on imsm raid5 or is it known issue? Unfortunately once Linux reboots it insists on resyncing the drives. If the device was successfully created, the reconstruction imsk has now begun.
When a chunk is written on a RAID-5 array, the corresponding parity chunk must be updated as well. Comment 4 Jeff Gustafson Please discuss this issue on the article’s talk page.
The RAID code will pick the easiest way to update each parity chunk as the exfract progresses. You should see that the array is running. Also see the section on special options to mke2fs.
Comment 12 Peter Bieringer Supported Intel chipsets may immsm with each revision of RST. The installation is opportunistic, so non-existing tools are just ignored.
Intel Rapid Storage Technology
Extract IMSM exe-file and get extrwct. Sign up using Facebook. This may be confusing or worrying; it is intended for good reason. Instead, we choose some chunk- size, which we define as the smallest “atomic” mass of data that can be written to the devices.
I will try to see if I can do a test install to try those bits out soonish.