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Date:      Sun, 10 Jan 1999 16:20:17 -0800 (PST)
From:      Julian Elischer <julian@whistle.com>
To:        Frank Nobis <fn@Radio-do.de>
Cc:        Kenneth Wayne Culver <culverk@wam.umd.edu>, freebsd-current@FreeBSD.ORG
Subject:   Re: SOFTUPDATES
Message-ID:  <Pine.BSF.4.05.9901101619170.304-100000@s204m82.isp.whistle.com>
In-Reply-To: <ygeyanan0yq.fsf@trinity.radio-do.de>

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also the slower the drive being written to the more softupdates helps :-)
it makes best sence to make /usr/obj an slow drive with softupates
on it  :-)


On 11 Jan 1999, Frank Nobis wrote:

> >>>>> "Julian" == Julian Elischer <julian@whistle.com> writes:
> 
>     Julian> I hope you have it on your /usr/obj partition, because
>     Julian> that's where it would be used and make a difference. It
>     Julian> only affects writes.
> 
> At the moment it is all on /usr
> 
> root@trinity:ttyp0# df
> Filesystem           1K-blocks     Used    Avail Capacity  Mounted on
> /dev/da0s1a             119055    24065    85466    22%    /
> /dev/da0s1f            7845429  1108339  6109456    15%    /usr
> /dev/da0s1e              99183     7102    84147     8%    /var
> procfs                       4        4        0   100%    /proc
> /dev/da1s1h            2032623        1  1870013     0%    /export2
> /dev/da3s1h            1951407   150384  1644911     8%    /export4
> /dev/da4s1h            4266912  3409329   857583    80%    /export5
> gatekeeper:/home        992751   826798    86533    91%    /home
> gatekeeper:/var/mail    496367   265825   190833    58%    /var/mail
> /dev/da2s2h            2051070        2  2051068     0%    /export
> root@trinity:ttyp0# mount
> /dev/da0s1a on / (local, writes: sync 31 async 25205)
> /dev/da0s1f on /usr (local, soft-updates, writes: sync 1087 async 190831)
> /dev/da0s1e on /var (local, writes: sync 66227 async 108266)
> procfs on /proc (local)
> /dev/da1s1h on /export2 (NFS exported, local, writes: sync 116 async 26865)
> /dev/da3s1h on /export4 (NFS exported, local, writes: sync 2 async 1569)
> /dev/da4s1h on /export5 (NFS exported, local, soft-updates, writes: sync 477 async 123440)
> 
> 
> I will do some tests on the slowe drive mounted on /export5 and
> /usr/obj linked /export5
> 
> 
> Dec 31 15:11:31 trinity /kernel: da0: <SEAGATE ST19101W 0014> Fixed Direct Access SCSI-2 device
> Dec 31 15:11:32 trinity /kernel: da0: 40.0MB/s transfers (20.0MHz, offset 15, 16bit), Tagged Queueing Enabled
> Dec 31 15:11:32 trinity /kernel: da0: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
> 
> da0 is at ahc0. The other drives are on ahc1.
> 
> Dec 31 15:11:31 trinity /kernel: ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter>rev 0x00 int a irq 19 on pci0.6.0
> Dec 31 15:11:31 trinity /kernel: ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs
> Dec 31 15:11:31 trinity /kernel: ahc1: <Adaptec 2940 SCSI adapter> rev 0x03 inta irq 16 on pci0.12.0
> Dec 31 15:11:31 trinity /kernel: ahc1: aic7870 Single Channel A, SCSI Id=7, 16/255 SCBs
> 
> 
> -- 
>  Frank Nobis                            Email: PGP AVAILABLE
>  Landgrafenstr. 130                     dg3dcn   http://www.radio-do.de/~fn/
>  44139 Dortmund				Powered by SMP FreeBSD
> 
> 


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