Martin Lillepuu | 1 Jul 2002 02:32

Re: pdcraid & udma

Ühel kenal päeval (pühapäev, 30. juuni 2002 21:03) kirjutas Max Dubois:
> > I'm using SuSE 8.0 with Asus A7V333 and 2x60Gb
> > Maxtor D740X drives configured
> > as RAID1. IDE RAID controller is onboard Promise
> > MBFastTrack133 Lite using
> > linux native ataraid/pdcraid drivers. When tested
> > with bonnie/zcav, the array
> > thruput is only ~2MB/sec. On another system, zcav
> > scores about 37MB/sec
>
> What is bonnie/zcav?

bonnie and zcav are filesystem benchmarks. check 
http://www.coker.com.au/bonnie++/ most distros should have packaged versions 
available also.

Conserning my original problem, small patching and kernel-building solved it 
(I just checked that using 2.4.19-rc1 kernel would have done the job also). 
My Fasttrak133 is now detected correctly, drives dma is enabled and even usb 
is working now :)

zcav gives me ~40MB/sec and bonnie scores have gone up quite a bit also.

--

-- 
Martin Lillepuu | e-mail: martin <at> lillepuu.com | gsm: +372 515 6450
Tim Weldon | 1 Jul 2002 11:08
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Picon

driver for Promise PDC20276

Hi

I bought a Gigabyte board with oem Promise PDC20276 controller included. 
Can anyone tell me where to find a driver so I can proceed with Red Hat 
installation. Have tried Promise and Gigabyte tech supp but still waiting 
for an answer

TIA

Tim
JOR. - Jordan, Roman | 1 Jul 2002 16:28
Picon

question about raid

Hi, i want to use software raid1 on my redhat distribution, using kernel
version 2.4.18 (RH7.3). My problem is the following:
The raid array consits of two idendical disc drives. The root-system is
mounted on md0. md0 consists of /dev/hda1 and dev/hdc1. The raid works o.k..
If i remove /dev/hda the system boots correct form /dev/hdc. The raid now
only consits of /dev/hdc, which is also correct. On a second pc i have the
same configuration. I work some days with the second pc. Now i want to
install the new software (or changes) to the first. Also, i insert one of
the actual disks of my second pc into the first pc. I thought this pc would
now boot from the newer raid disk (from my second pc). This is done only
sometimes. Where is my problem? Where is this boot information stored? How
can i control this behavior. I want boot from the newer disc.

And a second question. The discs seemed to be synced automaticly. Is this
possibel and where can i control this?

Many thanks for any help,
Roman Jordan 
Chuck Wolber | 1 Jul 2002 19:36

Re: pdcraid & udma

> > I'm using SuSE 8.0 with Asus A7V333 and 2x60Gb Maxtor D740X drives
> > configured as RAID1. IDE RAID controller is onboard Promise
> > MBFastTrack133 Lite using linux native ataraid/pdcraid drivers. When
> > tested with bonnie/zcav, the array thruput is only ~2MB/sec. On
> > another system, zcav scores about 37MB/sec
> 
> What is bonnie/zcav?

Benchmarking tools.
Samuel Flory | 1 Jul 2002 19:45

Re: driver for Promise PDC20276

The driver you are going to get from Promise will only work on 6.2, and
7.1.  There is a single proccessor driver for 7.2 as well.

http://promise.com/support/linux2_eng.asp?mode=linux_download&product_id=15

On Mon, 2002-07-01 at 02:08, Tim Weldon wrote:
> Hi
> 
> I bought a Gigabyte board with oem Promise PDC20276 controller included. 
> Can anyone tell me where to find a driver so I can proceed with Red Hat 
> installation. Have tried Promise and Gigabyte tech supp but still waiting 
> for an answer
> 
> TIA
> 
> Tim
Watterson, Jeff | 1 Jul 2002 20:18

Disk Geometry issues (?) Raid/ultra100


I was able to get a Promise FastTrak100 TX2 (PDC20270) up and running   sort
of...

I was able to make a  test raid0,   /dev/ataraid/d0 device from /dev/hde
/dev/hdg
However, even though I am using 2 40GB disks the OS is seeing only 2.0 GB
(I created  18594MB ea. raid0 partitions on hde/hdg). 

I can access the device via /proc/mdstat, I can mkfs the device, mount it,
add it to fstab,  reboot etc. and all works great - just that my 36GB stripe
is only 2GB ---

I get the same result with a Promise FastTrak Ultra100TX2 (PDC 20268)
controller and the same disks.

I would be perfectly happy using the native linux software raid for my raid
0 stripe(s).  I am not booting OS, or mounting any OS partitions to the
stripe(s) I create across the Promise controllers and associated disks. 

The same box will see the entire 40GB of each disk when using the onboard
PIIX4 I/O so it is not a large files size issue or hardware issue
(apparently) unless drive geometry is not translated correctly vi the
Promise controllers to the Linux Kernel?

Am I completely nuts?  What am I missing?  

Am I asking (hoping for) too much of these inexpensive controllers and
disks?  Are the higher end IDE controllers any better Because even If I have
to pay nearly the same for and IDE raid card vs. a entry level SCSI raid
(Continue reading)

Norbert Preining | 1 Jul 2002 20:27
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Gravatar

hpt and raid1

Hi List!

Are there any news on support of raid1 with hpt370 controller?

Best wishes

Norbert

-------------------------------------------------------------------------------
Norbert Preining <preining AT logic DOT at>         Technische Universität Wien
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
Arthur said, "So which way do I go?"
"Down, " said Fenchurch, "on this occasion."
He moved his hand.
"Down, " she said, "is in fact the other way. "
"Oh yes." 

                 --- Douglas Adams, The Hitchhikers Guide to the Galaxy
JOR. - Jordan, Roman | 3 Jul 2002 13:16
Picon

AW: question about raid

Hello,
is there realy no one who can help me?

greetings,
R.Jordan 

>  -----Ursprüngliche Nachricht-----
> Von: 	JOR. - Jordan, Roman  
> Gesendet:	Montag, 1. Juli 2002 16:28
> An:	'Ataraid-list <at> redhat.com'
> Betreff:	question about raid
> 
> Hi, i want to use software raid1 on my redhat distribution, using kernel
> version 2.4.18 (RH7.3). My problem is the following:
> The raid array consits of two idendical disc drives. The root-system is
> mounted on md0. md0 consists of /dev/hda1 and dev/hdc1. The raid works
> o.k.. If i remove /dev/hda the system boots correct form /dev/hdc. The
> raid now only consits of /dev/hdc, which is also correct. On a second pc i
> have the same configuration. I work some days with the second pc. Now i
> want to install the new software (or changes) to the first. Also, i insert
> one of the actual disks of my second pc into the first pc. I thought this
> pc would now boot from the newer raid disk (from my second pc). This is
> done only sometimes. Where is my problem? Where is this boot information
> stored? How can i control this behavior. I want boot from the newer disc.
> 
> And a second question. The discs seemed to be synced automaticly. Is this
> possibel and where can i control this?
> 
> Many thanks for any help,
> Roman Jordan 
(Continue reading)

Thorsten Jungblut | 3 Jul 2002 14:16
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Favicon

Re: AW: question about raid

> > Hi, i want to use software raid1 on my redhat distribution, using kernel
> > version 2.4.18 (RH7.3). My problem is the following:
> > The raid array consits of two idendical disc drives. The root-system is
> > mounted on md0. md0 consists of /dev/hda1 and dev/hdc1. The raid works
> > o.k.. If i remove /dev/hda the system boots correct form /dev/hdc. The
> > raid now only consits of /dev/hdc, which is also correct. On a second pc i
> > have the same configuration. I work some days with the second pc. Now i
> > want to install the new software (or changes) to the first. Also, i insert
> > one of the actual disks of my second pc into the first pc. I thought this
> > pc would now boot from the newer raid disk (from my second pc). This is
> > done only sometimes. Where is my problem? Where is this boot information
> > stored? How can i control this behavior. I want boot from the newer disc.

If i can understand this, this is what you do:

You have 2 PCs both with two harddisks, both using raid1.

Now you want to insert one of the harddisks from the second pc to the
first and expect that this pc boots from this harddisk and resyncing BOTH
disks in the first pc to the contents of the new harddisk?

This sounds impossible.

I dont think the array will detect one of the (now 3?) harddisks as the
"newest" and even if it notices that the contents from this third disk
differ from the contents of the two existing, i dont think the system will
trust the contents of one new disk more than the contents of two existing
disks..

Perhaps you can describe your problem a little bit more detailed, then i
(Continue reading)

Shawn Evans | 3 Jul 2002 14:39
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Help moving root partition... raid problems

HELP!!!!

I have my root partition on /dev/md0 (raid 1) and it has started crashing 
for no unknown reason (I think the controller or the Harddrive is failing).  
I need help doing two things.

1.  How can I move the root partition from /dev/md0 to another physical 
harddrive?... it is in and waiting.
2.  How can I tell if the problem is the ide controller or the harddisk. 
(This sytem had been running for over 190 days without a hick-up?

Thanks,

Shawn

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