[CentOS] Booting Software RAID
Paul Heinlein
heinlein at madboa.com
Thu Jan 30 21:27:16 UTC 2014
On Thu, 30 Jan 2014, m.roth at 5-cent.us wrote:
> Eight years ago, I wrote an article for SysAdmin, suggesting a
> straight partition for /boot and root, and lvm for /home and /var,
> and /usr. These days, I might say RAID 1 for /boot and /, and RAID
> or not for swap, and another raid partition for everything else:
> home, other data directories....
That's pretty much in line with our practice for standalone machines:
* /boot -- RAID 1
* / -- RAID 1
* /srv -- RAID 1 or 5, and it may not even be broken out
* /home -- NAS (RAID 10, if it matters)
For VMs, there's just swap and /.
> At work, we're going to not more than 500G for /, but I'm thinking a
> lot less: I just rebuilt my own system at home, and gave / 150G, I
> think, and I have /var there (though I'd put web stuff elsewhere
> than on /).
A RAID 1 of (relatively) inexpensive 80GB or 120GB SSDs are my default
for swap and the root filesystem. Larger /srv filesystems, and the NAS
holding /home, still require spinning platters on our budget.
--
Paul Heinlein
heinlein at madboa.com
45°38' N, 122°6' W
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