Re: a8n-vm csm
- From: "gg" <gg@xxxxxxxxxxxxxx>
- Date: Fri, 01 Sep 2006 06:28:49 GMT
Fantastic, Paul. Thank you very much for the details provided.
Actually I do experience some problems with the built-in raid for A8N-vm
CSM. I seem to have less of a problem if I shutdown every time instead of
standby. Errors tend to occur with many nights of standby use without
reboot. Even 2 nights of standby and start is dicey. Currently the 4th ATA
drive and an IDE is being used as part of backup storage.
The OS and some work area are in RAID 5 with 3 drives. ( I imaged the OS
already)
I would flash the main Bios with patches but I found it confusing as to
which patch and which version of driver to use
"Paul" <nospam@xxxxxxxxxx> wrote in message
news:nospam-3108061711560001@xxxxxxxxxxxxxxxx
In article <KduJg.38$Mh7.6@edtnps90>, "gg" <gg@xxxxxxxxxxxxxx> wrote:1210SA?
Thx
Because I ran out of connections ( I got 4 drives already and need and
another set of Raid array for performance
so Can use either one of the while PCI slot right?
Btw which one is better: Promise PCI 2.2 SATA 300TX2+/TX4 or Adaptec
in terms of compatibility with native raid, performance?
You can use either PCI slot.
As far as I know, the Adaptec 1210SA uses a Silicon Image SIL3112
chip. The chip is native SATA I, and is a soft raid. The onboard BIOS
chip provides the BIOS setup screen for the board. Usually, the
SIL3112 type boards can be flash upgraded to either support
RAID or changed to provide simple disk service. The quality of
the solution really depends on whether the RAID BIOS and the
driver are doing the right things.
Some of the Promise cards are a bit strange. Promise uses
one of their IDE RAID chips, and they use a PATA to SATA
conversion chip, to develop the necessary interface for
the SATA drive. This is fine, as long as the conversion chip
used, is known for wide compatibility with hard drives. There
have been some chips in the past that did not work well with
all drives, so there are some bad ones. Basically, as a user,
what you do is:
1) Find a picture of the Promise card you want to use. If you
see a big chip, plus a bunch of smaller chips next to the
SATA connectors on the board, zoom in and read the part
number off the smaller SATA chip. It could be a Marvell
part for example.
2) Using Google, enter the part number seen on the SATA chip,
and see if there are any comments about it.
When using cheap RAID controllers, I think my only comment
would be, to keep good backups. Even if the cards are
being used for RAID 1 mirrors, there have been cases where
drives were not properly being mirrored (stale data on one
of the drives), and you still need to do backups. If this
new RAID array is being used as a scratch disk, for Photoshop
or something, then there might be little to lose on the
array. If the array is being used for long term storage,
then you should do regular backups.
For performance, you can find benchmarks in either review
articles, or in postings in the private forums. The PCI
slot will probably be the limit on bandwidth, and you
may see 110-120MB/sec max transfer rate (on burst transfers).
On sustained transfers, then depending on the disks, the
number could be a bit lower.
Finding a RAID controller that can use the PCI Express x1
slot might give you a bit better burst performance. The
PCI Express x1 slot is rated for 250MB/sec dedicated
bandwidth in each direction, compared to the 110-120MB/sec
of the shared PCI bus. The chip used on this board could
be a SIL3132, and I base my guess on the observation that
a two port card claims to support RAID5. That can only
happen, if you connect a $100 port multiplier box
to one of the SATA ports on the card. The SIL3132 is
one of the earliest chips to support SATA port
multipliers.
"SABRENT SATA-PE44 PCI Express SATA II Controller Card
RAID 0/1/5/10 JBOD" $38 USD
http://www.newegg.com/Product/Product.asp?Item=N82E16816220004
http://www.siliconimage.com/products/product.aspx?id=32
Paul
"Thomas Wendell" <tumppiw_nospam@xxxxxxxxxxx> wrote in message
news:44f65cc1$0$22362$9b536df3@xxxxxxxxxxxxx
gg wrote:when
the spec on Asus says
1 x PCI Express x16
1 x PCI Express x1
2 x PCI
But I can see only one pci Express 16 and two what seem to be PCI.
The PCI-E x1 is "under" the second PCI slot on the picture..
Which one can I plug an PCI 2.2 SATA 300TX2=/TX4 controller from
Promise Tech, or Adaptec 1210SA?
Either PCI slot. But why would you connect a SATA card to the PCI bus,
there's 4 SATA connectors directly to the nVidia controller??
--
Tumppi
=================================
A lot learned from these newsgroups
Helsinki, FINLAND
(translations from/to FI not always accurate
=================================
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