Messages in this thread | | | Date | Wed, 18 Dec 1996 14:56:07 -0500 (EST) | From | "Mark F. burgo" <> | Subject | RE: adding scsi devices |
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Adaptec 2940 kernel 2.0.26 mark On 17-Dec-96 davidg@soupy.sbi.com wrote: --->--->If I may be so bold -- ---> --->What scsi controller are you using with your jaz drive? I recently --->purchased an Adaptec 2940AU and am having trouble getting it recognized --->by my linux -- kernel 1.2.13. ---> --->My next step is to try building the 2.0.27 kernel and hope for the best. If --->you have any advice/direction/hope/despair to share, I would greatly --->appreciate it. ---> --->Thanks. ---> --->David ---> --->> From owner-linux-scsi-outgoing@vger.rutgers.edu Tue Dec 17 13:14:27 1996 --->> X-Mailer: XFMail 0.4 [p0] on Linux --->> Content-Type> : > text/plain> ; > charset=us-ascii> --->> Content-Transfer-Encoding: 8bit --->> Mime-Version: 1.0 --->> Date: Tue, 17 Dec 1996 12:53:32 -0500 (EST) --->> From: "Mark F. burgo" <mfburgo@lrkimball.com> --->> To: "Marty Leisner" <leisner@sdsp.mc.xerox.com> --->> Subject: RE: adding scsi devices --->> Cc: aeb@cwi.nl, linux-kernel@vger.rutgers.edu, linux-scsi@vger.rutgers.edu --->> Sender: owner-linux-scsi@vger.rutgers.edu --->> Content-Length: 2458 --->> --->> --->> if you have only one scsi card your host would be 0. If it has only one s csi --->> channel then the channel would be 0, the id is the scsi id on the drive co uld --->> be 0 to 7 depending on the configuration and the lun should be 0. --->> --->> the command is for adding a scsi device that you may have forgotten to tur n on --->> before system powerup. syntax is: --->> --->> echo "scsi add-single-device <host> <channel> <id> <lun>" > /proc/scsi/scs i --->> --->> I have used this to add my jaz drive after the systems is running. --->> --->> you could also shutdown your machine, add the device, and restart. This i s the --->> best solution. If you have problems restarting check the scsi id's of all devic --->> es --->> currently connected. --->> --->> mark --->> --->> On 17-Dec-96 "Marty Leisner" wrote: --->> --->---> --->> ---> --->> ---> --->> --->Well, I never got this working satisfactorily, but the kernel code --->> --->in 2.0.27 has: --->> ---> --->> --->(in scsi.c) --->> --->f(!strncmp("add-single-device", buffer + 5, 17)) { --->> ---> p = buffer + 23; --->> ---> --->> ---> host = simple_strtoul(p, &p, 0); --->> ---> channel = simple_strtoul(p+1, &p, 0); --->> ---> id = simple_strtoul(p+1, &p, 0); --->> ---> lun = simple_strtoul(p+1, &p, 0); --->> ---> --->> ---> printk("scsi singledevice %d %d %d %d\n", host, channel, --->> ---> id, lun); --->> ---> --->> --->The man page (PROC(5) Linux Programmer's Manual PROC --->> (5) --->> --->22 July 1996 1 --->> --->has --->> ---> An echo `scsi singledevice 1 0 5 0' > --->> ---> /proc/scsi/scsi will cause host scsi1 to --->> ---> scan on SCSI channel 0 for a device on ID 5 --->> ---> LUN 0. If there is already a device known on --->> ---> this address or the address is invalid an --->> ---> error will be returned. --->> --->` --->> ---> --->> --->I find this strategy awkward (to say the least) and I'm not sure what number --->> s --->> --->to fill in (unless I write it down). I understand LUNs, is channel 0 the --->> --->first scsi board (if we have only one board?). --->> ---> --->> --->On a syquest disk, do they just have ID 0 (one device??) --->> ---> --->> --->It would make sense to allow a rescan via user control if no devices a re ope --->> n. --->> --->It would be good to allow a rescan with active devices (but this will be mor --->> e --->> --->complicated). --->> ---> --->> --->marty leisner@sdsp.mc.xerox.com --->> --->Don't confuse education with schooling. --->> ---> Milton Friedman to Yogi Berra --->> --->> ---------------------------------- --->> E-Mail: Mark F. burgo <mfburgo@lrkimball.com> --->> Date: 12/17/96 --->> Time: 12:53:32 --->> --->> This message was sent by XF-Mail --->> ---------------------------------- --->>
---------------------------------- E-Mail: Mark F. burgo <mfburgo@lrkimball.com> Date: 12/18/96 Time: 14:56:07
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