Jaime Vargas wrote:
Hi Jaime,
> I have a onboard fasttrack (PDC20265-on an Asus A7V133). Now i've been
> working sucessfully with a Redhat 7.1 installed with the lastest driver
> from Promise (Driver Version 1.2.0.9). The only problem is the working
> kernel that comes with the distribution (2.4.2-2). The question is: Can
> i upgrade the a new kernel and still have a working system with my card
probably not. I downloaded the promise drivers some weeks ago from the
promise web site to install them on SuSE Linux 7.2 with kernel 2.4.4. I
didn't work because the module was compiled with version information
included and for this reason refuses to work when the running kernel is
not 2.4.2-2.
> (Sorry i forget to say that i have 2 ide disks ATA 100 in RAID 0
> mode..of course...and a dual booting a Windows Millenium too). Any
> suggestion will be welcome ( is the correct phrase?): i mean what to do
> at the moment to recompile the kernel, what should to do with Lilo (or
> Grub?)..etc.
> I tried to run a 2.4.7 kernel with yours drivers following the
> instructions unsuccesfully. A last question: it's the beta-Roswell a
> better aproach? or nothing can i do until Promise puts a new driver
> compatible with other kernels?.
i'm running a 2.4.9 kernel with the lastest pdcraid modules from RedHats
Website installed and compiled. Seems to work fine. I did some
benchmarks writing on the RAID device and on one of the two array disks
seperatly. Here the results (with ext2 filesystem):
Bonnie 100MB NoRaid
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1* 100 17061 99.8 330987 100.2 266377 98.9 17597 100.0 414892
97.2 23789.1 95.2
Bonnie 1000MB NoRaid
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1*1000 4505 67.8 6073 48.2 2336 58.6 3622 81.4 5380 79.7
150.4 28.1
Bonnie 100MB Raid (Stripe with 2 disks)
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1* 100 12896 95.2 341199 100.0 260327 96.6 17644 99.9 422409
103.1 23886.0 95.5
Bonnie 1000MB Raid
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU
/sec %CPU
1*1000 4529 52.7 6052 51.3 2168 56.6 3383 74.3 4708 70.9
130.4 20.2
The tests were done in single user mode with two IBM 40 GB disks
IC35L040AVER07-0.
Can't see that the raid gives me any better performance.
Greetings, Jörg
