Re: raidstop --all doesn't do its job

1999-11-09 Thread Luca Berra

On Mon, Nov 08, 1999 at 11:33:46AM +, Marc Haber wrote:
 However, I find that a raidstop --all is necessary. Otherwise, the
 system shutdown scripts would have to know about all RAID devices to
 stop them all if autodetection isn't being used.

no, the kernel deals with stopping all active raid devices
in the shutdown/reboot/poweroff syscalls.

L.

-- 
Luca Berra -- [EMAIL PROTECTED]
Communications Media  Services S.r.l.



Re: raidstop --all doesn't do its job

1999-11-09 Thread Marc Haber

In ka.lists.linux.raid, you wrote:
On Mon, Nov 08, 1999 at 11:33:46AM +, Marc Haber wrote:
 However, I find that a raidstop --all is necessary. Otherwise, the
 system shutdown scripts would have to know about all RAID devices to
 stop them all if autodetection isn't being used.

no, the kernel deals with stopping all active raid devices
in the shutdown/reboot/poweroff syscalls.

Then the HOWTO should be updated. It says "Autostarted devices are
also automatically stopped at shutdown". To me, this implies that
devices that were not autostarted are not automatically stopped at
shutdown. Hence, my concerns.

Greetings
Marc

-- 
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Marc Haber  |   " Questions are the | Mailadresse im Header
Karlsruhe, Germany  | Beginning of Wisdom " | Fon: *49 721 966 32 15
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Re: Corrupted filesystem on RAID-5 volume

1999-11-09 Thread Chance Reschke


 I have a fileserver with two, 8-disk RAID-5 volumes, both of which
 appear to be corrupted.  Linux kernel 2.2.12, raid0145-19990824-2.2.11
 patch, raidtools-0.90.  I could use some help reviving my filesystems,
 if that's possible.
[ ... ]

My disks are back on-line.  It turns out that I had originally made a typo
when entering the alternate superblock number for e2fsck.

 - C



Re: ide and hot swap

1999-11-09 Thread Marc SCHAEFER

Gerrish, Robert [EMAIL PROTECTED] wrote:
 backups can save your business.  You not only should think about system
 failures, but fires, floods, etc.

and silent data corruption. Remember, IDE hasn't parity. Also, disk-drives
can develop bad blocks over time.

That's why incremental backups, even done on your old QIC-120 for only
the most important files, can be good.



SMP and RAID-5

1999-11-09 Thread cprice



Any known issues with running software raid-5 under kernel 2.2.xx
on an SMP system? Specifically, I have a Gigabyte 6BXD with 2 (matched)
PII-350's. I am going to run a SYMBIOS (Tekram 390F) 53C875 UW controller
with 3 Seagate ST39140W drives in a RAID-5 config.

Anyone know of any issues with this config... I thought I had read
that RAID-5 had some issues in SMP systems...

Cheers!

Chris



RE: SMP and RAID-5

1999-11-09 Thread Jason A. Diegmueller

|   Any known issues with running software raid-5 under 
|  kernel 2.2.xx
|  on an SMP system? Specifically, I have a Gigabyte 6BXD with 
|  2 (matched)
|  PII-350's. I am going to run a SYMBIOS (Tekram 390F) 53C875 
|  UW controller
|  with 3 Seagate ST39140W drives in a RAID-5 config.
|  
|   Anyone know of any issues with this config... I thought 
|  I had read
|  that RAID-5 had some issues in SMP systems...

Since upgrading to 2.2.13pre12 on a client's HP Netserver LXe
Pro with dual Pentium Pro/200 CPUs, that was up 48 days straight
running a Software-Root RAID5 across 4 drives until a recent
power outage caused me to have to take it down.  

The SCSI adapter is an onboard AIC-7880, FWIW.  Works like a
champ!  

::: Jason A. Diegmueller
::: Microsoft Certified Systems Engineer
::: 513/542-1500 WORK  //  [EMAIL PROTECTED]
::: Systems Administrator, Bertke Systems Innovations



adding a new architecture

1999-11-09 Thread Qingkai Ma

Does anyone have experience adding a new architecture(such as even-odd, 
raid5+paritylogging) to linux raid?
I think I can learn from your experience.Please describe what I should do to realize a 
new raid architecture.



Re: ide and hot swap

1999-11-09 Thread Marc Merlin

On mar, nov 09, 1999 at 10:42:53 +0100, Marc SCHAEFER wrote:
 and silent data corruption. Remember, IDE hasn't parity. Also, disk-drives
 can develop bad blocks over time.

While I'll be the last person to praise IDE, recent drives and controllers
have CRC error checking, which is actually better than parity.

Marc
-- 
Microsoft is to software what McDonalds is to gourmet cooking
 
Home page: http://marc.merlins.org/ (friendly to non IE browsers)
Finger [EMAIL PROTECTED] for PGP key and other contact information



Re: ide and hot swap

1999-11-09 Thread Seth Vidal

 While I'll be the last person to praise IDE, recent drives and controllers
 have CRC error checking, which is actually better than parity.

would you happen to know which drives and controllers?

The promise udma66's? Any WD IDE's or IBM's 36+gig.
-sv