Re: Hard disk bottle neck.

Server Info: FreeBSD 6.2 Apache 2.2.9 DELL PowerEdge 1850 2GB RAM (only 184MB is active) so what's up with other 1.8GB? 6x300MB SCSI 10K RPM RAID5 300MB disks at 10K? there was such? Gigabit Ethernet Connection My server can output NO MORE than 60Mbps (read only). you mean Mbps or MBps

Re: Hard disk bottle neck.

Danny Do wrote: Hi guys, I have this problem for years but couldn't find a way to solve it. I have a file server handling large files from 1MByte to 1GByte. Server Info: FreeBSD 6.2 Apache 2.2.9 DELL PowerEdge 1850 2GB RAM (only 184MB is active) 6x300MB SCSI 10K RPM RAID5 Gigabit Ethe

Re: Hard disk bottle neck.

"Danny Do" <[EMAIL PROTECTED]> wrote: > > Hi guys, > > I have this problem for years but couldn't find a way to solve it. > > I have a file server handling large files from 1MByte to 1GByte. > > Server Info: > FreeBSD 6.2 > Apache 2.2.9 > > DELL PowerEdge 1850 > 2GB RAM (only 184MB is active)

Re: Hard disk bottle neck.

First be shure your bottleneck are the hard drives. On Sun, Sep 28, 2008 at 8:54 AM, Bill Moran <[EMAIL PROTECTED]> wrote: > "Danny Do" <[EMAIL PROTECTED]> wrote: >> >> Hi guys, >> >> I have this problem for years but couldn't find a way to solve it. >> >> I have a file server handling large files

RE: Hard disk bottle neck.

sd-questions@freebsd.org Subject: Re: Hard disk bottle neck. Danny Do wrote: > Hi guys, > > > > I have this problem for years but couldn't find a way to solve it. > > I have a file server handling large files from 1MByte to 1GByte. > > Server Info: > FreeBSD

RE: Hard disk bottle neck.

the following code: patch /usr/src/sys/sys/param.h #ifndef DFLTPHYS #define DFLTPHYS(1024 * 1024) /* default max raw I/O transfer size */ #endif #ifndef MAXPHYS #define MAXPHYS (1024 * 1024) /* max raw I/O transfer size */ #endif #ifndef MAXDUMPPGS I'll update the result. I'

RE: Hard disk bottle neck.

#ifndef MAXDUMPPGS I'll update the result. I'll tell you how I go. Maybe sometimes in the next fortnight. Thanks everyone, thanks Wojciech Puchar, Danny anyway - how your RAID5 is configured? didn't you selected SMALL stripe sizes? this way - every large read uses 3 disks in parallel, inst

Re: Hard disk bottle neck.

Wojciech Puchar <[EMAIL PROTECTED]> wrote: > > after you recompile the kernel with that patch, check your disk > performance in some directory consisting of many large files > > cd that_dir > for x in *;do (cat $x >/dev/null &);done > > while running systat,:vmstat on another console More speci

Re: Hard disk bottle neck.

On Sun, Sep 28, 2008 at 11:17 AM, Bill Moran <[EMAIL PROTECTED]> wrote: > Wojciech Puchar <[EMAIL PROTECTED]> wrote: >> >> after you recompile the kernel with that patch, check your disk >> performance in some directory consisting of many large files >> >> cd that_dir >> for x in *;do (cat $x >/dev

Re: Hard disk bottle neck.

If the patch dont works, maybe yoy may try to split the raid (2 raid 5) or better use a raid 10. The raid 5 isnt a top performance raid. properly configured RAID5 is top performing on reads ___ freebsd-questions@freebsd.org mailing list http://lists.f

RE: Hard disk bottle neck.

: Wojciech Puchar; Danny Do; freebsd-questions@freebsd.org Subject: Re: Hard disk bottle neck. On Sun, Sep 28, 2008 at 11:17 AM, Bill Moran <[EMAIL PROTECTED]> wrote: > Wojciech Puchar <[EMAIL PROTECTED]> wrote: >> >> after you recompile the kernel with that patch, c

RE: Hard disk bottle neck.

The reason I use RAID5 because I don't want to waste too much space on redundancy whilst taking the advantage of read. Over 99% of disk access are expected to be reading. in that case - RAID5 is perfect, just properly set up. ___ freebsd-questions@fre