* Tape Drive Question (2.6.14.4)
@ 2005-12-24 15:10 Justin Piszcz
2005-12-24 18:54 ` Jonathan Corbet
0 siblings, 1 reply; 3+ messages in thread
From: Justin Piszcz @ 2005-12-24 15:10 UTC (permalink / raw)
To: linux-kernel
$ ls -l /dev/st0*
crw-rw-rw- 1 root tape 9, 0 2004-09-18 07:51 /dev/st0
crw-rw-rw- 1 root tape 9, 96 2004-09-18 07:51 /dev/st0a
crw-rw-rw- 1 root tape 9, 32 2004-09-18 07:51 /dev/st0l
crw-rw-rw- 1 root tape 9, 64 2004-09-18 07:51 /dev/st0m
What differentiates st0 from a,l,m?
What does writing or reading to a tape using a,l,m signify?
I cannot seem to find any documentation clearly stating this.
Justin.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Tape Drive Question (2.6.14.4)
2005-12-24 15:10 Tape Drive Question (2.6.14.4) Justin Piszcz
@ 2005-12-24 18:54 ` Jonathan Corbet
2005-12-24 22:57 ` Justin Piszcz
0 siblings, 1 reply; 3+ messages in thread
From: Jonathan Corbet @ 2005-12-24 18:54 UTC (permalink / raw)
To: Justin Piszcz; +Cc: linux-kernel
> $ ls -l /dev/st0*
> crw-rw-rw- 1 root tape 9, 0 2004-09-18 07:51 /dev/st0
> crw-rw-rw- 1 root tape 9, 96 2004-09-18 07:51 /dev/st0a
> crw-rw-rw- 1 root tape 9, 32 2004-09-18 07:51 /dev/st0l
> crw-rw-rw- 1 root tape 9, 64 2004-09-18 07:51 /dev/st0m
>
> What differentiates st0 from a,l,m?
> What does writing or reading to a tape using a,l,m signify?
By default, they're all the same. You can tweak the driver parameters,
however, to cause the different devices to use different densities and
blocking modes. See mt(1) and Documentation/scsi/st.txt.
jon
Jonathan Corbet
Executive editor, LWN.net
corbet@lwn.net
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Tape Drive Question (2.6.14.4)
2005-12-24 18:54 ` Jonathan Corbet
@ 2005-12-24 22:57 ` Justin Piszcz
0 siblings, 0 replies; 3+ messages in thread
From: Justin Piszcz @ 2005-12-24 22:57 UTC (permalink / raw)
To: Jonathan Corbet; +Cc: linux-kernel
Ahhh, ok thanks!
Justin.
On Sat, 24 Dec 2005, Jonathan Corbet wrote:
>> $ ls -l /dev/st0*
>> crw-rw-rw- 1 root tape 9, 0 2004-09-18 07:51 /dev/st0
>> crw-rw-rw- 1 root tape 9, 96 2004-09-18 07:51 /dev/st0a
>> crw-rw-rw- 1 root tape 9, 32 2004-09-18 07:51 /dev/st0l
>> crw-rw-rw- 1 root tape 9, 64 2004-09-18 07:51 /dev/st0m
>>
>> What differentiates st0 from a,l,m?
>> What does writing or reading to a tape using a,l,m signify?
>
> By default, they're all the same. You can tweak the driver parameters,
> however, to cause the different devices to use different densities and
> blocking modes. See mt(1) and Documentation/scsi/st.txt.
>
> jon
>
> Jonathan Corbet
> Executive editor, LWN.net
> corbet@lwn.net
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2005-12-24 22:57 UTC | newest]
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2005-12-24 15:10 Tape Drive Question (2.6.14.4) Justin Piszcz
2005-12-24 18:54 ` Jonathan Corbet
2005-12-24 22:57 ` Justin Piszcz
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