I just moved my /home partition over to /dev/md0, and it looks nice.
Going from a 5200 RPM UDMA drive to a pair of 5400 RPM Wide SCSI drives
actually makes a noticeable difference for file access on that partition
(duh). However, on going to the 2.2.14 kernel, I can't apply the
Unified IDE
[ Sunday, January 9, 2000 ] Franc Carter wrote:
I am planning to set up a large ide raid5 system. From reading the
archives of the list it looks like the way to go is with promise
ultra66 cards, making sure that I have good cables. I am hopeing
to get a minimum of 8 drives into a machine. My
Franc Carter wrote:
I am planning to set up a large ide raid5 system. From reading the
archives of the list it looks like the way to go is with promise
ultra66 cards, making sure that I have good cables. I am hopeing
to get a minimum of 8 drives into a machine. My current plan is for
the
From my experience, it works fairly well, but there are some constraints:
- Performance is really horrible if you use IDE slaves.
Even though you say you aren't performance-sensitive, I'd
recommend against it if possible.
- Thus, to get 8 drives in a machine, you not only need
I've currently got a hardware raid system that I'm maxing out so
any ideas on how to speed it up would be gratefully received.
Current system is dual p2 500 with mylex extremeraid with 6 10krpm
discs on each of 2 channels. of this I have an 8 disc raid6 (0+1) with 4
discs on each channel and
I have a raid 1 between two disks that's working fine, but I'm curious
as to why quite a bit of data seems to be buffered before it is written
to the drives. I see this manifested in simple procedures like
untar'ing a file. Before raid, a drive would be continuously writing
(red diode
On Mon, Nov 29, 1999 at 04:20:45PM -0500, James Manning wrote:
tiotest is a nice start to what I would like to see: a replacement
for bonnie... While stripping out the character-based stuff from
bonnie would bring it closer to what I'd like to see, threading
would be a bit of a pain so
Unified IDE patch, it gives LOTS of errors. Compiling the stock 2.2.14
with the RAID patch doesn't give me DMA support for my IDE drive, where
the rest of my linux system is installed. Anybody gotten this to work,
or does anybody want to volunteer to look at the errors that I get from
I'm sorry if this is covered somewhere. I couldn't find it.
1 - I have a raid1 consisting of 2 drives. For strange
historical reasons one is SCSI and the other IDE. Although
the IDE is fairly fast the SCSI is much faster and since I
now have another SCSI drive to add, I would like to replace
On Mon, Jan 10, 2000 at 12:49:29PM -0800, Dan Hollis wrote:
On Mon, 10 Jan 2000, Jan Edler wrote:
- Performance is really horrible if you use IDE slaves.
Even though you say you aren't performance-sensitive, I'd
recommend against it if possible.
My tests indicate UDMA performs
James Manning writes:
What worries me is that what looks like is happening is that the
md-layer is passing a very-invalid sector request (for whatever reason
it got that far) down to the devices making up your raid1 and since the
ll_rw_blk::make_request() fails the md-layer tags that as a
On Mon, 10 Jan 2000, Jan Edler wrote:
- Performance is really horrible if you use IDE slaves.
Even though you say you aren't performance-sensitive, I'd
recommend against it if possible.
My tests indicate UDMA performs favorably with ultrascsi, at about 1/6 the
cost. Cost is often a big
On Mon, Jan 10, 2000 at 02:03:14AM -0500, James Manning wrote:
Has anyone used the systems/racks/appliances/etc from raidzone.com?
If you believe their site, it certainly looks like a good possibility.
The raidzone stuff works, and the packaging is nice.
They provide much more scalability than
On Mon, 10 Jan 2000, Jan Edler wrote:
My tests indicate UDMA performs favorably with ultrascsi, at about 1/6 the
cost. Cost is often a big factor.
I wasn't advising against IDE, only against the use of slaves.
Here we agree :D 1 device per channel. (When will any vendors implement
IDE
Hi there,
I will get a new computer in some days and I want to build up an array.
I will use a derivate of RedHat Linux 6.1 (Halloween 4). There is RAID
support in the graphical installation tool, so I think the RAID patches
are already attached to the kernel.
Any hints what I must change, any
James Manning wrote:
Well, it's kind of on-topic thanks to this post...
Has anyone used the systems/racks/appliances/etc from raidzone.com?
If you believe their site, it certainly looks like a good possibility.
Yes.
It's pricey. Not much cheaper that SCSI chassis. You only save money
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