On 26-11-2016 01:24, Jeff Simmons wrote:

> I've got a couple of net6501's running OpenBSD 6.0, and I'd like to
> replace the mSATA SSDs with something larger. The SSDs I have were
> purchased directly from Soekris, and looking around the market there's
> a lot of mSATA stuff that I'm not sure would work. Any limits as to
> size, SATA version, etc. that I should watch out for? Any specific
> recommendations? If I could get 60G I'd be a very happy camper.

I think you should be fine with most disks. I never had any
compatibility or configuration problem, just some hardware bad luck.

The only real recommendation I have is to buy two SSD of different
brands, and run them in mirror mode (with ZFS or RAID). As Eric
mentioned, be aware that the two Mini-PCI Express sockets are shared
with the mSATA sockets, so if you use two mSATA disks, you can't use the
Mini-PCI Express sockets.

A quick summary of the problems I had:
- Bought my net6500 in december 2011.
- Original Transcend TS16GMSA300 (in mSATA slot J6) crashed in september
2013
- No mirror, had to get data from backup. Took me over a day.
- Replaced with two Intel SSD, SSDMCEAC030B3, mirror mode.
- Intel SSD #2 (in mSATA slot J6) crashed in october 2014 and september 2015
- Changed position of the SSDs in the mSATA slots
- Intel SSD #2 (now in mSATA slot J5) crashed in october 2015
- Got replacement disk from Intel
- Intel SSD #3 (in mSATA slot J5) crashed in november 2015
- Replaced with Kingston SMS200S330G SSD
- Running fine with an Intel SSD #1 + Kingston ever since.

As one of my colleagues (and storage expert) mentioned: If you get two
equal disks of the same brand, type and batch, they are more likely to
fail at roughly the same time. Just get yourself two different brands of
disks. Less likely that you have a duplicate failure at the same time.

Regards,
Freek
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