I am using 4 SATA II drives, with this card (see the comments) which got
detected by Solaris automatically:
http://napobo3.blogspot.com/2006/04/sata2-under-b36.html
I understand that my 32bit CPU is the limiting factor? But that seems a bit
strange I think. A [EMAIL PROTECTED] should be able to
Orvar Korvar wrote:
I am using 4 SATA II drives, with this card (see the comments) which
got detected by Solaris automatically:
http://napobo3.blogspot.com/2006/04/sata2-under-b36.html
On there you posted:
However, I get very slow read/write perfomance. I have 4 samsung
500GB each should
How are the drives connected? USB or SATA?
Also, is this hardware raid or are you using raidz?
If sata, what controller is being used?
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Orvar,
around 50 to 60 MB/sec I've seen when zwo disks are writing
and around 100MB/s when reading round-robin.
The limiting faktor has been the old PCI-Bus (*not* 32-Bit
slot length) and in another test the 1-lane PCI-X bus.
(Sil680/SIL3124-2 and SIL3132 Chip)
So if you can see the
I did that, and here are the results from the ZFS jury:
bash-3.00$ timex dd if=/dev/zero of=file bs=128k count=8192
8192+0 records in
8192+0 records out
real 19.40
user 0.01
sys1.54
That is, 1GB created on 20sec = 50MB/sec. That is better, but still not good,
Orvar Korvar wrote:
When I copy that file from ZFS to /dev/null I get this output:
real0m0.025s
user0m0.002s
sys 0m0.007s
which can't be correct. Is it wrong of me to use time cp fil fil2 when
measuring disk performance?
replying to just this part of your message for now
cp
I am using Solaris Express Community build 67 installed on a 40GB harddrive
(UFS filesystem on Solaris), dual boot with Windows XP. I have a zfsraid with 4
samsung drives. It is a [EMAIL PROTECTED] and 1GB RAM.
When I copy a 1.3G file from ZFSpool to ZFSpool the command time cp file
file2
ZFS is a 128 bit file system. The performance on your 32-bit CPU will
not be that good. ZFS was designed for a 64-bit CPU. Another GB of RAM
might help. There are a bunch of post in the archive about 32-bit CPUs
and performance.
-Sean
Orvar Korvar wrote:
I am using Solaris Express
On Jul 7, 2007, at 06:14, Orvar Korvar wrote:
When I copy that file from ZFS to /dev/null I get this output:
real0m0.025s
user0m0.002s
sys 0m0.007s
which can't be correct. Is it wrong of me to use time cp fil fil2
when measuring disk performance?
well you're reading and writing
have set up a ZFS raidz with 4 samsung 500GB hard drives.
It is extremely slow when I mount a ntfs partition and copy everything to zfs.
Its like 100kb/sec or less. Why is that?
When I copy from ZFSpool to UFS, I get like 40MB/sec - isnt it very low
considering I have 4 new 500GB discs in
On 7/6/07, Orvar Korvar [EMAIL PROTECTED] wrote:
have set up a ZFS raidz with 4 samsung 500GB hard drives.
It is extremely slow when I mount a ntfs partition and copy everything to
zfs. Its
like 100kb/sec or less. Why is that?
How are you mounting said NTFS partition?
When I copy from
A couple of questions for you:
(1) What OS are you running (Solaris, BSD, MacOS X, etc)?
(2) What's your config? In particular, are any of the partitions
on the same disk?
(3) Are you copying a few big files or lots of small ones?
(4) Have you measured UFS-to-UFS and ZFS-to-ZFS
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