-----Original Message-----
From: guy keren
To: [EMAIL PROTECTED]
Sent: 06/22/2001 4:19 PM
Subject: iglu server maintanance status
{
hi,
sorry for the flakiness of the server in the past couple of hours.
the server (iglu.org.il) is now up again, after we opened it in order to
check 2 things:
}
A big "thank you" to Guy and Muli for their time and efforts.
{
1. see that the cables are set up properly to all disks (no lose
cables).
one of them might have been a bit lose, and we tightened it.
}
Do you remember what cable was it?
Did you notice any badly mangled cable?
{
2. there is no free bay in the machine to insert a hard disk. all 4
bottom
bays are filled with the raid's disks, and the bays above them
contain 2 disks, a floppy and a cdrom. however, we might be able to
free the bay occupied by sdb - this disk has less then 2GB space
actually used, and most can be moved to /usr/local (except for the
0.5GB swap partitoin - which will be traumatic to move).
}
Ouch.
{
btw, the disks didn't seem to be too hot at all, but we managed to
touch them only after the machine was turned off for about 20
minutes.
}
Usually a hot SCSI disk is _hot_, almost enough to make scrambled eggs on
it.
On the other side, this does not removes relevance to hardware sensors
option -
you do not know how many disk were active for how many time. It is possible
that
they _do_ overheat at peak traffic.
{
we think that since most disk errors come fom disk 'sdc', we might wish
to
replace it and see if the problems go away. after some mesisng with the
disks and 'dd', we found disk 'sdc' to be the rightmost amongst the 4
bottom bay disks.
}
IMHO in case the heat was causing the problems, the faulty drives should
have been located
in the middle of RAID's blob.
{
as for adding more disks - the only descent way would probably be to add
another SCSI controller, and an external storage array. there are
several
free ISA/PCI slots at the top of the machine (above the mother board
area).
regarding fans - there is no space to place a fan in frant of the disks,
and we don't realy tink heat is the problem anyway.
that's about it for now.
}
Again, thanks for investigations and fixes.
--
guy
"For world domination - press 1,
or dial 0, and please hold, for the creator." -- nob o. dy
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