Re: Reliability with RAID 10 SSD and Streaming Replication - Mailing list pgsql-performance

From Greg Smith
Subject Re: Reliability with RAID 10 SSD and Streaming Replication
Date
Msg-id 519D7D60.1060804@2ndQuadrant.com
Whole thread Raw
In response to Re: Reliability with RAID 10 SSD and Streaming Replication  (Mark Kirkwood <mark.kirkwood@catalyst.net.nz>)
Responses Re: Reliability with RAID 10 SSD and Streaming Replication  (Mark Kirkwood <mark.kirkwood@catalyst.net.nz>)
List pgsql-performance
On 5/22/13 10:04 PM, Mark Kirkwood wrote:
> Make that quite a few capacitors (top right corner):
> http://regmedia.co.uk/2013/05/07/m500_4.jpg

There are some more shots and descriptions of the internals in the
excellent review at
http://techreport.com/review/24666/crucial-m500-ssd-reviewed

That also highlights the big problem with this drive that's kept me from
buying one so far:

"Unlike rivals Intel and Samsung, Crucial doesn't provide utility
software with a built-in health indicator. The M500's payload of SMART
attributes doesn't contain any references to flash wear or bytes
written, either. Several of the SMART attributes are labeled
"Vendor-specific," but you'll need to guess what they track and read the
associated values using third-party software."

That's a serious problem for most business use of this sort of drive.

--
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.com


pgsql-performance by date:

Previous
From: Merlin Moncure
Date:
Subject: Re: Reliability with RAID 10 SSD and Streaming Replication
Next
From: Mark Kirkwood
Date:
Subject: Re: Reliability with RAID 10 SSD and Streaming Replication