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SubjectIDE and hot-swap disk caddies
Date
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I'm running Clark Connect 0.91 (basically Red Hat Linux 7.2 plus some
updates and extra packages), RHL kernel 2.4.9-13, hdparm v4.1.

I have a VIPowER 3-fan mobile rack (see http://www.vipower.com for a
fuller explanation), part number VP-7010LS3F-66.

The device is hot-swap capable and has a switch (others have a key)
that locks the drive in and powers it up; in the other position the
drive is powered down and can be removed.

What I'd like to be able to do is insert a drive into a running system,
register it (hdparm -R), mount it, write on it, umount it, unregister
it (hdparm -U).

I have the system configured (when the drive's plugged in) thus:

hda Fujitsu 4 Gbyte hdd
hdb Vacant
hdc Fujitsu 1 Gbyte hdd
hdd 20x CD drive
Motherboard ASUS SP97-V, SiS 5598 (detects as 5513), chipset. Pentium
133 CPU.

If I boot with hdc not present, then insert the drive, the system hangs
immediately. I've configured syslogd to write kernel messages to
/dev/tty11, but no messages about the problem are displayed.

What can I do to get some messages displayed?

I presume that Linux is getting unexpected interrupts and not coping
well.


If I boot with hdc present, then hdparm -U /dev/hdc displays all the
same display it does for hdparm -h

Here is a more complete list of the hardware:
[root@clark-133 root]# lspci -v -v
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 5597 [SiS5582]
(rev 02)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >
TAbort- <TAbort- <MAbort+ >SERR- <PERR- Latency: 32

00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 (rev
01)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >
TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0

00:01.1 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev
d0) (prog-if 8a [Master SecP PriP])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at <ignored>
Region 1: I/O ports at <ignored>
Region 2: I/O ports at <ignored>
Region 3: I/O ports at <ignored>
Region 4: I/O ports at d000 [size=16]

00:0b.0 Ethernet controller: Standard Microsystems Corp [SMC] 83C170QF
(rev 06)
Subsystem: Standard Microsystems Corp [SMC] EtherPower II 10/100
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 32 (2000ns min, 7000ns max)
Interrupt: pin A routed to IRQ 10
Region 0: I/O ports at b800 [size=256]
Region 1: Memory at e5800000 (32-bit, non-prefetchable)
[size=4K]
Expansion ROM at <unassigned> [disabled] [size=64K]

00:13.0 VGA compatible controller: Silicon Integrated Systems [SiS]
5597/5598 VGA (rev 65) (prog-if 00 [VGA])
Subsystem: Silicon Integrated Systems [SiS] 5597/5598 VGA
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >
TAbort- <TAbort- <MAbort- >SERR- <PERR- Region 0: Memory at
e7000000 (32-bit, prefetchable) [size=4M]
Region 1: Memory at e5000000 (32-bit, non-prefetchable)
[size=64K]
Region 2: I/O ports at b400 [size=128]
Expansion ROM at e6ff0000 [disabled] [size=32K]

[root@clark-133 root]#


I tried to register hdc (I know, it was registered at boot time) with
this result:
Mar 25 15:07:22 clarkconnect kernel: hdc: irq timeout: status=0xff {
Busy }
Mar 25 15:07:27 clarkconnect kernel: hdc: status timeout: status=0xff {
Busy }
Mar 25 15:07:27 clarkconnect kernel: hdc: drive not ready for command
Mar 25 15:07:55 clarkconnect kernel: hdc: status timeout: status=0xff {
Busy }
Mar 25 15:07:55 clarkconnect kernel: hdc: drive not ready for command

I then tried to put it to sleep (-Y)

Mar 25 15:08:00 clarkconnect kernel: hdc: status timeout: status=0xff {
Busy }
Mar 25 15:08:00 clarkconnect kernel: hdc: drive not ready for command
Mar 25 15:10:12 clarkconnect kernel: spurious 8259A interrupt: IRQ7.
Mar 25 15:32:48 clarkconnect kernel: ip_conntrack (480 buckets, 3840
max)

and in standby (-y)

Mar 25 15:33:42 clarkconnect kernel: hdc: status timeout: status=0xff {
Busy }
Mar 25 15:33:42 clarkconnect kernel: hdc: DMA disabled
Mar 25 15:33:42 clarkconnect kernel: hdc: drive not ready for command
Mar 25 15:33:42 clarkconnect kernel: ide1: reset: success

The hard drives:
[root@clark-133 root]# hdparm -i /dev/hd{a,c}

/dev/hda:

Model=FUJITSU MPB3043ATU E, FwRev=4010, SerialNo=01075314
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=8940/15/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=16
CurCHS=8940/15/63, CurSects=-382992256, LBA=yes, LBAsects=8448300
IORDY=yes, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2 udma0 udma1 *udma2
AdvancedPM=no
Drive Supports : Reserved : ATA-1 ATA-2 ATA-3


/dev/hdc:

Model=M1614TA, FwRev=8D-44-21, SerialNo=03022742
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=2114/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=64kB, MaxMultSect=16, MultSect=16
CurCHS=2114/16/63, CurSects=-2082471904, LBA=yes, LBAsects=2131584
IORDY=yes, tPIO={min:370,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 *mdma2
AdvancedPM=no

[root@clark-133 root]#

--
Cheers
John Summerfield

Microsoft's most solid OS: http://www.geocities.com/rcwoolley/

Note: mail delivered to me is deemed to be intended for me, for my
disposition.

==============================
If you don't like being told you're wrong,
be right!



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