On Tue, 24 May 2011, Kevin K wrote:
To: CentOS mailing list <centos@xxxxxxxxxx>
From: Kevin K <kevink1@xxxxxxxxxx>
Subject: Re: SSD for Centos SWAP /tmp & /var/ partition
On May 24, 2011, at 10:25 AM, Rudi Ahlers wrote:
But don't you think that a SSD, or rather Solid State Drive, would
still be seen as a different type of drive than a SATA drive, even
though they share the same type of bus & connector + power cable?
I know you get some USB type SSD's, but people still refer to them as
SSD drives, and not USB drives
Depends on what level you are looking. Generically, it is
a sequence of blocks, just like a rotating hard drive
appears. Proper ID commands can find out more detailed
information on it.
Some computers, like the Macbook Air, have SSD but it is
NOT SATA. It is plugged into an expansion slot. I have
also seen other SSDs that plug into PCI Express slots.
The OWC drive I'm looking at is a 2.5" SSD drive with SATA
II 3.0 Gb/s interface. It can also be used with a SATA
-> IDE/ATA adaptor, that would make it appear to the OS as a
P-ATA EIDE drive.
http://eshop.macsales.com/shop/SSD/OWC/Mercury_Extreme_Pro/Legacy_Edition
"Add a technological supercharger to your existing Mac or PC
with the OWC Mercury EXTREME Pro Legacy Edition SSD. Thanks
to the special PATA adapter included , itʼs the fastest,
most reliable IDE/ATA mechanism available to breathe
lightning fast performance into that trusty machine and
extend its usefulness.
Includes IDE/ATA adapter for use in 3.5" IDE/ATA desktop
drive bays. With PATA adapter removed, SATA I (1.5Gb/s) and
SATA II (3.0Gb/s) interface supported, SATA 2.6 Compliant."
So I could use this in a desktop as an EIDE ATA 133Mbs
drive with the PATA adaptor, or as a SATA II desktop drive,
or in a laptop as a SATA drive.
The only thing I don't like is the fact that it's a MLC SSD.
I'd much rather find a SLC drive, due to the x10 reliability
factor.
The SATA -> EIDE drive adaptors are on ebay cheap.
I think this is a 2-way adapter; SATA -> PATA or vice
versa.
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=320645765177&ssPageName=STRK:MESINDXX:IT
The other option is to throw in a PCI(e) SATA controller
card, and run the SSD as a native SATA II drive in a legacy
IDE desktop.
Kind Regards,
Keith Roberts
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