Linux-Hardware Digest #381
Linux-Hardware Digest #381, Volume #14 Wed, 21 Feb 01 21:13:08 EST
Contents:
Re: hard drive overheat (Stefaan A Eeckels)
ATL tape library and RH 6.2 ("Andrew G. Bacchi")
Re: scsi disk partition tables (Wilhelm Wienemann)
Re: joystick driver on RH7 (2.2.16) (Philippe Massicotte)
Re: redhat 7 scsi issues ("D. Stimits")
Re: Iomega ZIP 100 USB drive: let's make it work. (Jim Chisholm)
Re: Cheap PCI sound card supported by Linux and OS/2? (Ron Gibson)
adaptec fibre channel controller (C White)
Promise SuperTrak66 RAID 5 Controller (Tim Lider)
Re: IDE CD-RW installation help needed ("japhilp")
Re: IDE CD-RW installation help needed ("japhilp")
Re: upgrading RPM!! (John Thompson)
mounting udf cds as nonroot (Gregory Davis)
From: [EMAIL PROTECTED] (Stefaan A Eeckels)
Subject: Re: hard drive overheat
Crossposted-To: comp.unix.solaris
Date: Wed, 21 Feb 2001 21:59:40 +0100
In article [EMAIL PROTECTED],
John Hunter [EMAIL PROTECTED] writes:
I have a Quantum external SCSI hard drive that has failed on a
Sparc-Solaris 5.7 system. I came in and the fan had burned out so I
suspect the drive overheated. It's been a couple of weeks since I
last backed it up (I know, I know...) and there is some data I would
like to recover.
The system that it was on booted from this drive, and I am hoping that
there are some partitions that are still good which I can mount it
from another system. We have some linux boxes up and another
Sparc-Solaris 5.7 up which I can use to try and recover some of the
data. I don't really know how to go about it, though.
Can anyone offer some advice? Is there any hope? If I mount it on a
linux box, what fs type should I use in /etc/fstab? Should I try and
dump the data with dd, or fsck the drive?
I'd connect it to another Solaris box, just to maximize
your chances. Unfortunately, if a drive overheats, _all_
paritions are shot (they reside on the same platters, and
use the same heads...).
Mount the disk in a ventilated enclosure, connect it up to
the external SCSI port of a Solaris/SPARC box, and boot -r
from OBP. The machine will -if the disk is still reacting -
recognize the disk and create the required /devices and /dev
entries.
Then, try to dd the various partitions to a nice, huge area
on a reliable drive. If that works, mount them with lofi and
recover the files.
Finally, get a backup routine going...
Take care, and good luck,
--
Stefaan
--
How's it supposed to get the respect of management if you've got just
one guy working on the project? It's much more impressive to have a
battery of programmers slaving away. -- Jeffrey Hobbs (comp.lang.tcl)
--
From: "Andrew G. Bacchi" [EMAIL PROTECTED]
Subject: ATL tape library and RH 6.2
Date: Wed, 21 Feb 2001 16:20:59 -0500
I have installed an ATL L500 tape library with an DLT 7000 drive. I can
use the DLT drive with no problem, but I can't seem to get the library
robot to work under RedHat 6.2. I am not sure which device to use or
which driver to use for the loader/library. The host detects the SCSI
tape at /dev/st0, but there is nothing for the loader. Can anyone
suggest where to begin on this. Below is the output from dmesg for the
SCSI adapter. Thanks for any help.
scsi1 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.28/3.2.4
Adaptec AIC-7896/7 Ultra2 SCSI host adapter
scsi : 2 hosts.
(scsi0:0:0:0) Synchronous at 10.0 Mbyte/sec, offset 15.
Vendor: ATL Model: L500 632 Rev: 0021
Type: Medium Changer ANSI SCSI revision: 02
(scsi0:0:1:0) Synchronous at 20.0 Mbyte/sec, offset 15.
Vendor: QUANTUM Model: DLT7000 Rev: 2560
Type: Sequential-Access ANSI SCSI revision: 02
Detected scsi tape st0 at scsi0, channel 0, id 1, lun 0
scsi : detected 1 SCSI tape total.
--
When all else fails, read the documentation.
Andrew G. Bacchi
Sr. System Administrator
AIRS
Hanover, NH
--
From: Wilhelm Wienemann [EMAIL PROTECTED]
Subject: Re: scsi disk partition tables
Date: 21 Feb 2001 20:54:00 GMT
Reply-To: [EMAIL PROTECTED] (Wilhelm Wienemann)
Beard Family [EMAIL PROTECTED] informed
comp.os.linux.hardware with the following:
Trying to set up disk partitions to load slakware onto a pair of
SCSI disks. Everytime I try to create new partitions and write
the info to the partition tables, ...
Which command (keycode in fdisk) did you use to write the
partition table? The keycodes for Linux fdisk are:
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit wi
Linux-Hardware Digest #381
Linux-Hardware Digest #381, Volume #13Tue, 8 Aug 00 18:13:07 EDT
Contents:
Re: dump and hardware compression (Joshua Baker-LePain)
Re: SCSI HP Scanner: Sane works, XSane doesn't (Guy Maskall)
Re: SCSI HP Scanner: Sane works, XSane doesn't ("Tito")
Re: Why is my harddisk so slow? (emiel)
idebus speed (emiel)
Re: Need Ideas For An ISA NIC (Craig McCluskey)
Re: Printing to an HP4050N (Craig McCluskey)
Re: USB scanner for Linux? (Wolfgang Fritz)
Re: "Turbo" and X-windows. (Internet Support Pete)
Re: USB printer for Linux? (Internet Support Pete)
HP DDS2 and DDS3 backward compatibility ("Stefan Viljoen")
Undesired video behavior ("wm")
Re: Why is my harddisk so slow? (Dances With Crows)
From: Joshua Baker-LePain [EMAIL PROTECTED]
Crossposted-To: comp.os.linux.misc
Subject: Re: dump and hardware compression
Date: 8 Aug 2000 19:15:57 GMT
In comp.os.linux.hardware [EMAIL PROTECTED] wrote:
Hi all,
Can anyone tell me whether the Dump command supports
the hardware compression on my HP C1554A Dat tape drive?
I don't think I'm getting anywhere near the 24gb that I
should be able to get onto these DDS3 tapes. Any info
would be greatly appreciated! RH Linux6.2
*sigh* RTFM. But, let me spell some stuff out
1) the dump command does not handle compression. The state of the
tape drive is controlled by the 'mt' command. For example:
mt -f /dev/nst0 status
gets the status of the drive. In there will be the density code -- 0x25
is the correct code for DDS3. If that current status does not show that,
you can set the density by:
mt -f /dev/nst0 setdensity 0x25
This *is* explained in the mt man page, which is what I pointed you at
before. This info is also available via a quick (took me 5 minutes) search
on www.deja.com.
2) 24GB is an *estimate*, and an optimistic one at that. Your tapes have a
native capacity of 12GB, and the 24GB number is based on 2:1 compression.
If you are backing up a lot of already compressed or binary files,
you're not going to get anywhere near 2:1 compression.
3) What makes you think you're not getting enough capacity? Are the backups
hitting eot before you expect them to? Or are the estimates off? If it's
the estimates, what dump command are you using? Some of those paramerters
tell dump how big of a tape to expect, and it bases the estimates in those.
4) dump as shipped with RH6.2 is buggy. Download the latest version (0.4b18)
from:
http://dump.sourceforge.net/
This includes a -a option which tells dump to write until it hits eot,
omitting tape length estimates. You'll have to read the man page to
see what other options are available.
--
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University
--
From: Guy Maskall [EMAIL PROTECTED]
Subject: Re: SCSI HP Scanner: Sane works, XSane doesn't
Date: Tue, 08 Aug 2000 20:32:15 +0100
I may have misread your original post.
What can you actually do and can't do? What hardware and kernel do you
have?
You should have a /home/name/.sane directory, does deleting it help?
Guy
--
From: "Tito" [EMAIL PROTECTED]
Subject: Re: SCSI HP Scanner: Sane works, XSane doesn't
Date: Tue, 8 Aug 2000 15:39:57 -0400
Thanks for your help,
I am using RedHat 6.2, so I guess it's one of the latest kernel versions.
I'm using an HP Scanner on an Advansys card which is being recognized by the
kernel, and, xscanimage works fine. XSane is another frontend to sane. I
tried deleting .sane but that didn't work. Someone told me I should debug
it and run some export commands but I don't really know how to do this.
-Tito
"Guy Maskall" [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]...
I may have misread your original post.
What can you actually do and can't do? What hardware and kernel do you
have?
You should have a /home/name/.sane directory, does deleting it help?
Guy
--
From: emiel [EMAIL PROTECTED]
Subject: Re: Why is my harddisk so slow?
Date: Tue, 08 Aug 2000 21:43:15 +0200
IDE has always been somewhat slower. And the smaller the density, the
slower the average. 3 GB versus 20 GB on the same access time would
probably give dramatically better results...cluster size is important.
But if you want something really fast, get the ultra 160 with a 64 bit
PCI...it exceeds expectations, and the drives themselves aren't that
much different in price from older scsi technology (yes, this far
exceeds the price of IDE, it also vastly outperforms it).
But shouldn't udma/66 give a throughput of 66 MB/s (in theory) ?
When I do "hdparm -t" I get about 13 MB/s, which doesn't even come close
to 66MB/s ! But when i do "hdparm -T" I get about 60 MB/s, which looks
great, but since this involves cache readings it isn't really a
Linux-Hardware Digest #381
Linux-Hardware Digest #381, Volume #10Tue, 1 Jun 99 08:13:56 EDT
Contents:
The WAY TO MAKe MONEY 21469 ("Don Lee" [EMAIL PROTECTED])
From: "Don Lee" [EMAIL PROTECTED]
Crossposted-To:
comp.lang.java.programmer,comp.lang.javascript,comp.lang.perl.misc,comp.lang.tcl,comp.mail.eudora.ms-windows,comp.os.linux.advocacy,comp.os.linux.development.system,comp.os.linux.misc,comp.os.linux.networking
Subject: The WAY TO MAKe MONEY 21469
Date: Tuesday, 01 Jun 1999 01:43:09 -0600
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