The "tipping points" I would look at is the fact that SSD's, for
around the same price and capacity as enterprise level drives
(would be debatable in higher capacity areas where enterprise
drives rule):
1. Put out less heat. (Usually 1/2 a spinner)
2. Have no shock weakness (you can shake them while they're
performing data operations if you would like)
3. Use less power. (Usually 1/2 a spinner)
4. Produce no noise. (Yep, for that quiet web server in your
living room!)
For an always on server, two of those have value. For placement of
the server, the noise definitely holds a value if you share the
room.
I would still suggest you use spinners for data storage (spinning
backup and file stores, even place /home on) but use SSD for the
read performance (website, O/S...basically /, /tmp, and /var)
Basically, setups I always see are:
RAID 1 for O/S, web, and database using 2 x SSD's
RAID 1 on 2 x non-enterprise spinners for storage. (Backups of the
database, home directories, etc)
On 04/02/2013 02:55 PM, Lisa Kachold wrote:
Sure Paul! Why not. Under linux a SSD drive is as
fast as a hardware controlled RAID array.
For every endeavor your data storage is finite;
drives will wear out at some point!
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