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Alexandre TASTET | 7 Jan 2004 11:07
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RAID 0 software 2.6.x <<<<< RAID 0 software 2.4.22

hi,

I recently installed a Fedora Core2 distribution .
At the installation, i used the disk druid to make a raid0 Software 
cause i got 2 identicals disks (i  got an HPT370 IDE RAID but i don't 
success to install hardware raid0 with the Fedora Core 2).

So after installation, i test the rate of the disk on the kernel 2.4.22 :
Tiotest results for 4 concurrent io threads:
,----------------------------------------------------------------------.
| Item                  | Time     | Rate         | Usr CPU  | Sys CPU |
+-----------------------+----------+--------------+----------+---------+
| Write          40 MBs |    0.6 s |  64.391 MB/s |   1.6 %  |  41.9 % |
| Random Write   16 MBs |    0.6 s |  27.075 MB/s |   0.0 %  |  17.3 % |
| Read           40 MBs |    0.1 s | 394.030 MB/s |   0.0 %  |  98.5 % |
| Random Read    16 MBs |    0.0 s | 399.351 MB/s |   0.0 %  |  76.7 % |
`----------------------------------------------------------------------'
Tiotest latency results:
,-------------------------------------------------------------------------.
| Item         | Average latency | Maximum latency | % >2 sec | % >10 sec |
+--------------+-----------------+-----------------+----------+-----------+
| Write        |        0.033 ms |       40.530 ms |  0.00000 |   0.00000 |
| Random Write |        0.023 ms |        4.379 ms |  0.00000 |   0.00000 |
| Read         |        0.010 ms |        1.983 ms |  0.00000 |   0.00000 |
| Random Read  |        0.009 ms |        0.428 ms |  0.00000 |   0.00000 |
|--------------+-----------------+-----------------+----------+-----------|
| Total        |        0.020 ms |       40.530 ms |  0.00000 |   0.00000 |
`--------------+-----------------+-----------------+----------+-----------'

It's "normal" performance about me...
(Continue reading)

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Andreas Tophofen | 7 Jan 2004 20:11

Re: RAID 0 software 2.6.x <<<<< RAID 0 software 2.4.22

Hello Alexandre,
...

AT> It's "normal" performance about me...
AT> After i updraded to the kernel 2.6.x, and now this the new performance:

AT> As u can see , the difference is so big, my raid 0 software on kernel 
AT> 2.6.x has a rate lesser than a single disk...???
...

AT> i made severals times the tests, and the results are the same...

AT> The difference between  my kernel 2.4.22 and 2.6.x is, that in 2.4.22 
AT> the loading of "raid0.o jbd.o and ext3.o" are doing by the initRD and in 
AT> my 2.6.x the modules are built in the kernel (cause i don't success to 
AT> create an initRD which works..:( )

AT> What do you think a bout it ?
AT> The kernel 2.6.x is bad for raid0 or i make an error in installation ?

I can´t help you, because i don´t know something about that.

But i´ve watched the same results on my Gentoo System

The difference is: I had an "Softram" aka md-raid.

Under my 2.4.22 Kernel Performance near then 80 MB/s under
2.6.x-beta11 und 30MB/s.
Normaly one HDD takes about 42MB/s.
(Continue reading)

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Sharif Islam | 9 Jan 2004 00:40
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Promise Card with Enterprise AS

I recently reinstalled one of my server with Enterprise As. It was 7.3
before. My promise Ultra 100 Tx2 worked like a charm before, but in AS
it is no worky. Anyone encountered this problem before? Any suggestions?

I tried to load the ide-scsi(ide-scsi.o) module, that didn't help
either. I believe the Ultra card uses PDC20628 chipsets and earlier
RedHat supported those. Thanks.

-Sharif

--

-- 
<>-<
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Les Bell | 9 Jan 2004 00:48
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Re: Promise Card with Enterprise AS


Sharif Islam <mislam <at> ux1.cso.uiuc.edu> wrote:

>>
I recently reinstalled one of my server with Enterprise As. It was 7.3
before. My promise Ultra 100 Tx2 worked like a charm before, but in AS
it is no worky. Anyone encountered this problem before? Any suggestions?
<<

See
http://www.lesbell.com.au/Home.nsf/b8ec57204f60dfcb4a2568c60014ed0f/cc0e36c80bf652c7ca256d33001d5c83?OpenDocument
 . The technique described there works fine with RH 7.3, 9, etc and should
work with RHEL AS.

Best,

--- Les Bell, RHCE, CISSP
[http://www.lesbell.com.au]
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Louis E. Elrod | 9 Jan 2004 01:40

Re: Promise Card with Enterprise AS

I've installed Red Hat 3 AS with a TX2 care without a problem...

-- 
Louis Elrod, A+, Net+, MCP, MCSA, MCSE, CCNA
309.657.0563
louis.elrod <at> bluecurveconsulting.com

"the box said requires win 98 or better so i installed linux"

> I recently reinstalled one of my server with Enterprise As. It was 7.3
> before. My promise Ultra 100 Tx2 worked like a charm before, but in AS
> it is no worky. Anyone encountered this problem before? Any suggestions?
>
> I tried to load the ide-scsi(ide-scsi.o) module, that didn't help
> either. I believe the Ultra card uses PDC20628 chipsets and earlier
> RedHat supported those. Thanks.
>
> -Sharif
>
> --
> <>-<
>
>
> _______________________________________________
> Ataraid-list mailing list
> Ataraid-list <at> redhat.com
> https://www.redhat.com/mailman/listinfo/ataraid-list
>
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Sharif Islam | 9 Jan 2004 02:33
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Re: Promise Card with Enterprise AS

On Thu, 8 Jan 2004, Louis E. Elrod wrote:

> I've installed Red Hat 3 AS with a TX2 care without a problem...

did you had to install any driver? extra kernel configuration? I would
appreciate any pointers.

-Sharif
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Louis E. Elrod | 9 Jan 2004 14:06

Re: Promise Card with Enterprise AS

Everything was stock... I did nothing special.
-- 
Louis Elrod, A+, Net+, MCP, MCSA, MCSE, CCNA
309.657.0563
louis.elrod <at> bluecurveconsulting.com

"the box said requires win 98 or better so i installed linux"

> On Thu, 8 Jan 2004, Louis E. Elrod wrote:
>
>> I've installed Red Hat 3 AS with a TX2 care without a problem...
>
>
> did you had to install any driver? extra kernel configuration? I would
> appreciate any pointers.
>
> -Sharif
>
>
>
>
> _______________________________________________
> Ataraid-list mailing list
> Ataraid-list <at> redhat.com
> https://www.redhat.com/mailman/listinfo/ataraid-list
>
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Sharif Islam | 9 Jan 2004 16:49
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Re: Promise Card with Enterprise AS

On Fri, 9 Jan 2004, Louis E. Elrod wrote:

[Ultra Tx2 issue with linux]

> Everything was stock... I did nothing special.

Ok. Maybe I am doing something stupid. I didn't mention this in the
original post, but I am trying to build a RAID1 drive with two of my
120GB Western Digital drives. I used mdadm and raid creatiion process went fine. My
card detects the drive fine and I can see them from fdisk -l. I was
able to mount /dev/md0 after the raiding was done. However,
after rebooting it wasn't there.

Any idea?

# uname -r
2.4.21-4.ELsmp

# lspci
00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P]
System Controller (rev 11)
00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P]
AGP Bridge
00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-766 [ViperPlus] ISA
(rev 02)
00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-766 [ViperPlus]
IDE (rev 01)
00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-766 [ViperPlus] ACPI
(rev 01)
00:07.4 USB Controller: Advanced Micro Devices [AMD] AMD-766 [ViperPlus]
(Continue reading)

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Homme R. Bitter | 9 Jan 2004 16:57
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Re: Promise Card with Enterprise AS

On Fri, 2004-01-09 at 16:49, Sharif Islam wrote:
> On Fri, 9 Jan 2004, Louis E. Elrod wrote:
> 
> [Ultra Tx2 issue with linux]
> 
> > Everything was stock... I did nothing special.
> 
> Ok. Maybe I am doing something stupid. I didn't mention this in the
> original post, but I am trying to build a RAID1 drive with two of my
> 120GB Western Digital drives. I used mdadm and raid creatiion process went fine. My
> card detects the drive fine and I can see them from fdisk -l. I was
> able to mount /dev/md0 after the raiding was done. However,
> after rebooting it wasn't there.
> 
> Any idea?

This has nothing to do with ataraid, you are doing a softraid thing
here. Is it in your /etc/fstab?
Did you run the raidstart command?
You need to have the raid1 module inserted

Homme
> _______________________________________________
> Ataraid-list mailing list
> Ataraid-list <at> redhat.com
> https://www.redhat.com/mailman/listinfo/ataraid-list
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Sharif Islam | 9 Jan 2004 19:00
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Re: Promise Card with Enterprise AS


On Fri, 9 Jan 2004, Homme R. Bitter wrote:

> On Fri, 2004-01-09 at 16:49, Sharif Islam wrote:
> > On Fri, 9 Jan 2004, Louis E. Elrod wrote:
> >
> > [Ultra Tx2 issue with linux]
> >
> > > Everything was stock... I did nothing special.
> >
> > Ok. Maybe I am doing something stupid. I didn't mention this in the
> > original post, but I am trying to build a RAID1 drive with two of my
> > 120GB Western Digital drives. I used mdadm and raid creatiion process went fine. My
> > card detects the drive fine and I can see them from fdisk -l. I was
> > able to mount /dev/md0 after the raiding was done. However,
> > after rebooting it wasn't there.
> >
> > Any idea?
>
> This has nothing to do with ataraid, you are doing a softraid thing
> here. Is it in your /etc/fstab?
> Did you run the raidstart command?
> You need to have the raid1 module inserted

Thanks it worked.  The raid1 module was not loaded.
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Gmane