Control Station Replacement

• Dafult login is nasadmin/nasadmin or root/nasadmin
• If failing over from 1 CS to the other, the new secondary CS will reboot as part of the process
• First attempt should be swapping the original drive into the replacement CS. Not following essentials. Get IP’s first from /etc/hosts or /nas/sbin/navicli -h spa domain -list. Celerra_sbm_cs01 and Celerra_sbm_cs02
• If after boot, reboot or boot loops likely OS is corrupt, common issue. Need to get exact matching DART code. EX EI_DVD_7.1.80.7.iso
• If doing reload follow essentials, be sure to shut down peer CS as well.
• Log into the primary CS and run /nas/sbin/getreason
• Can also run from the secondary /nasmcd/getreason
• To get CS primary again run /nasmcd/sbin/cs_standby -takeover NAS services should start on their own
• Unisphere connects to whichever CS is primary with NAS services running
• 11 reason code is healthy, 0 is faulted or reset

Normal Boot

Normal FS with primary CS and NAS services running

Fix bad sectors:

RUNNING FSCK ON LINUX CONTROL STATION ROOT VOLUME:

1.  In Dual Control Station environments, log into CS1, unmount partition, and run command

/sbin/e2fsck  -f  -y -v /dev/sdc3

Caution:  Do not run this command without seeking a 2nd opinion!

2.  Alternatively, if single Control Station, boot to single user mode, or unmount volume and run e2fsck

Comment:  e2fsck is used to FS Check a linux second extended FS

RUNNING FSCK ON DOS PARTITION:

/sbin/fsck -t msdos -V -v -l /dev/nda1

RUNNING FSCK ON CS0 FROM CS1:

1.  Power down CS0  #/nas/sbin/t2reset  pwroff  -s  0

2.  Identify Root & Boot partitions on CS0:  #cat  /nas/dos/slot_0/boot.bat

CS0=/dev/sdc1 for boot & /dev/sdc3 for root

CS1=/dev/sdd1 for boot & /dev/sdd3 for root

3.  Run FSCK on boot & root partitions:

/sbin/e2fsck  -y  -p  /dev/sdc1

4.  Mount root and boot partitions:

mount  /dev/sdc3  /mnt     #mount  /dev/sdc1  /mnt/boot     #umount  /mnt/boot

5.  Powerup CS0:  #/nas/sbin/t2reset  pwron  -s  0