Hello,
I am having some stability problems with the following LINUX system
and would really appreciate some advice.
System Config:
Tyan 1832DL with
Dual 400MHz Intel Pentium II processors
256M of Tyan recommended memory (pricey stuff)
Dual channel SmartRAID-IV 3334UW controller connect to:
64M Cache Non-ECC (cheaper standard memory)
External disk storage with 6 4.3 Gig Western Digital 4360's
External storage unit attached to single channel of 3334UW
Channel 1 is connected to the 6, External disks divided
into two 12 Gig stripe sets.
Channel 0 is left open for future expansion.
Adaptec AHA-2940 UW connected to:
2 internal 4.3 Gig Western Digital 4360's on scsi II connector
(System disk, /usr and /var)
Sony Tape Unit & CDRom on scsi I connector
Basic Trident PCI, VGA card
3Com 3c509 NIC
(I couldn't keep it running for more than an hour with a 3c905)
RedHat Version 5.1 (2.0.35 Kernel)
I put the system together by loading the LINUX system on the two
internal disks attached to the Adpatec controller. I configured RedHat
Linux to use the eata-dma driver to recognise the DPT RAID card. I
rebuilt the kernal to use both cpu's. I created two striped disk sets
of three drives each in the external enclosure using the the DOS based
Storage Manager. I created 2, 12 gig ext2 file systems on the RAID
units.
It all works at least for a few days at a time.
Symptoms:
- About once a week the system hangs and I see no messages.
Instantly freezes the screen.
- When the system crashes, It trashes the file systems attached to the
3334UW RAID controller and requires a tape restore.
Have I put together a marginally stable group of hardware here or is
there some secret I have missed about all the configuration issues of
my selected hardware components? I would love some insight into this
since we are about to bite the bullet and switch over to a Solaris
operating system in hopes of stabilizing on our hardware. We love
LINUX and do not want to switch but I am at my wits end.
One issue I do not know how to deal with is the extra unused DPT RAID
channel for future expansion. I do not know how that should be
properly terminated. All the instructions in the manual show at least
one drive connected to a channel either internally or externally.
There is no mention about what to do with a spare channel which is
connected neither internally or externally to any drives. I am about
to put an internal single terminated disk on it just to eliminate this
as a possible problem. Would a single external terminator be just as
good as a single internally terminated disk?
Your help will be greatly appreciated.
Otis
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