Conference wrksys::mikasa

831.0. "Alphaserver1000A disks locking up." by SIOG::KING () Thu Jan 30 1997 05:19

    I am having a strange problem with a rack mounted Alphaserver 1000A
    4/266.It is running NT3.51 Service pack 4 and contains 3 RZ29B-VW's
    configured as RAID 5 in an external BA356.The controller is a single
    channel PCI SWXCR.
    Intermittently when someone attempts to logon in the morning they are
    unable to and the server appears to be down.When we look at the console 
    it is OK but using file manager we are unable to access any of the
    local partitions C.D or F.We can access all mapped network drives on 
    other machines but are unable to do anything locally.A reboot always 
    clears the problem.Incremental backups are performed every evening at
    19:00 and always complete successfully.It is backed up across the
    network using Arcserve on another machine.We initially replaced the
    SWXCR but have since discovered that we are unable to access the CDROM
    which is on the internal SCSI so we think the problem is not with the
    SWXCR.This problem has never been seen during the day but only in the 
    morning so we suspect it could be connected to the backup the previous 
    night.The machine has only been installed since October 96 and always
    had this problem.
    			Any ideas or help appreciated.
    
    
    			Tim King.
    
    PS I have cross posted this to Windows-NT.
    

    Have you checked the cable length between the KZPSC and the BA356 I
    had a similar problem and come to find out manufacturing installed a
    3 meter cable instead of a 2 meter cable. This will cause you all kinds
    of trouble.