[Samba] Samba performance issues

[John Coston]

it's software RAID-1 using two fast wide scsi 36 gb discs. Filesystem 
is ext3. We have one 30gb partition for share data, and the rest is for 
system and swap.
here is some of output from dmesg:

md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
<...>
scsi0 : sym53c8xx-1.7.3c-20010512
scsi1 : sym53c8xx-1.7.3c-20010512
blk: queue c3c57618, I/O limit 4095Mb (mask 0xffffffff)
   Vendor: HP        Model: 36.4GB C 80-8C32  Rev:
   Type:   Direct-Access                      ANSI SCSI revision: 02
blk: queue c3c57818, I/O limit 4095Mb (mask 0xffffffff)
   Vendor: HP 36.4G  Model: MAN3367MC         Rev: HP04
   Type:   Direct-Access                      ANSI SCSI revision: 02
<...>

I'm not too swift on filesystems and discs, so let me know if there is 
more info you need & thanks


On Tuesday, September 24, 2002, at 01:40  PM, Bradley W. Langhorst 
wrote:

>
> On Tue, 2002-09-24 at 15:57, John Coston wrote:
>>   12:46pm  up 2 days, 17:14,  3 users,  load average: 20.24, 20.26, 
>> 20.51
>> 129 processes: 106 sleeping, 23 running, 0 zombie, 0 stopped
>> CPU states: 36.1% user, 63.8% system,  0.0% nice,  0.0% idle
>> Mem:  3229040K av, 3166372K used,   62668K free,       0K shrd,
>
> i have about 20 users on a 900Mhz machine with 100G of storage (only
> 384M ram)
>
> i don't think it's ever been cpu bound as a result of samba activity.
>
> that 63.8% system seems out of whack...
> what is the disk subsystem?
>
> brad
>
>