I have a software raid1 setup with stretch with 2 sata drives
I notice that when I run cat /proc/mdstat that my sda drive is mostly listed as the first drive except for md1 which lists the sdb drive first. Its a raid 1 setup and my drives are local
Is this normal and ok ?
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md3 : active raid1 sda7[3] sdb7[2]
1950720 blocks super 1.2 [2/2] [UU]
md4 : active raid1 sda8[3] sdb8[2]
205838336 blocks super 1.2 [2/2] [UU]
bitmap: 0/2 pages [0KB], 65536KB chunk
md0 : active raid1 sda1[3] sdb1[2]
24396800 blocks super 1.2 [2/2] [UU]
md2 : active raid1 sda6[3] sdb6[2]
2093056 blocks super 1.2 [2/2] [UU]
md1 : active raid1 sdb5[2] sda5[3]
9756672 blocks super 1.2 [2/2] [UU]
unused devices: <none>
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/proc/mdstat query software raid1 mdadm
Re: /proc/mdstat query software raid1 mdadm
Yes, that's ok. The Linux kernel 'numbers' the hard drives in order of detection during boot. This usually follows the SATA port numbers. Depending on your connections, the order in which the drives are mounted in your computer case can differ.