Date: Wed, 12 May 2004 10:13:18 -0600 From: "Kenneth D. Merry" <ken@kdm.org> To: Joan Picanyol i Puig <lists-gmane@biaix.org> Cc: freebsd-scsi@freebsd.org Subject: Re: setting WCE on SCSI disks across reboots Message-ID: <20040512161318.GA7014@panzer.kdm.org> In-Reply-To: <pan.2004.05.12.15.55.04.52923@biaix.org> References: <pan.2004.05.12.15.55.04.52923@biaix.org>
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On Wed, May 12, 2004 at 17:55:04 +0200, Joan Picanyol i Puig wrote: > Hi, > > I'm trying to disable the write-cache on these two disks: > > <SEAGATE ST318438LW 0003> at scbus0 target 0 lun 0 (pass0,da0) > <IBM DNES-309170W SA30> at scbus0 target 6 lun 0 (pass2,da1) > > both sitting on an Adaptec 2940 U2W controller > > ahc0: <Adaptec 2940 Ultra2 SCSI adapter> port 0x1000-0x10ff mem > 0xd0020000-0xd0020fff irq 11 at device 14.0 on pci0 > > I can set WCE to 0 using camcontrol modepage -e -m 0x08, but upon reboot > WCE is set to 1 again. AFAIK this can't be set interactively, so I am at a > loss as to how to disable the wc forever. > > Any ideas? By default, you're only editing the current parameters. If you specify the saved parameters, hopefully it'll last across reboots. (Add -P 3 to the command you're using above.) Ken -- Kenneth Merry ken@kdm.org
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