NS600 Power Down/Power Up Procedure v1.

Use the following guide when having to perform or instruct a proper power down and/or power up
sequence.

Before any shutdown of an NS600, make sure the backend Storage Processors and the first DAE
power is plugged into the Stand-by Power Supply.

Improper shutdown of the backend can result in a dirty cache condition and possible data
corruption.

Please make sure to read through this guide in it’s entirety before continuing.

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Powering Down the NS600

Step 1 – Log into the Control Station

Step 2 – Change User to Root

A. su (and enter password)

Step 3 – Check backend battery status

Note: Skip this step if you are only shutting down the Data Movers

A. Issue the command /nas/sbin/navicli -h sp_ip_address getcrus

The output will be similar to the following example. Note the text in bold. “SPS State
and Cabling” should be “Present and Valid”.

Note: If this not correct, perform the repair action before proceeding.

SPE Enclosure SPE Present

(Enclosure SPE : Present)
SP A State: Present
SP B State: Present
Enclosure SPE Fan A State: Present
Enclosure SPE Fan B State: Present
Enclosure SPE Fan C State: Present
Enclosure SPE Power A State: Present
Enclosure SPE Power B State: Present
Enclosure SPE SPS A State: Present
Enclosure SPE SPS B State: Present
Enclosure SPE SPS A Cabling State: Valid
Enclosure SPE SPS B Cabling State: Valid

Warning: If the backend status is not as displayed there is a potential to a dirty cache condition if
you shut down in a faulted state.

Step 4 – Reboot the Control Station

A. reboot -f -n

Step 5 – Log into the Control Station and Change User to Root

A. su (and enter password)

Step 6 – Stop NAS

A. /sbin/service nas stop

Note: If NAS fails to stop reboot the Control Station and try again.

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Step 7 – Verify NAS is Stopped

A. ps -ef | grep box make sure this returns no output or just the grep command you
entered.

Step 8 – Remount the Celerra Volumes

A. Type the following commands

mount /nbsnas
mount /nas
mount /nas/var
mount /nas/dos

Step 9 – Halt Data Mover 2

A. Issue the command server_cpu server_2 –h now & this will run the command in
the background.

Note: This may take a few minutes for the command to complete.

Step 10 – Verify Data Mover 2 is in a Reset State.

A. Issue the command /nasmcd/getreason you may see one of the following in the
output…

10 - slot_0 primary control station

0 - slot_2 reset
0 - slot_3 contacted

or

10 - slot_0 primary control station

0 - slot_3 contacted

Step 11 – Halt Data Mover 3

A. Issue the command server_cpu server_3 –h now & This will run the command in
the background.

Note: This may take several minutes for the command to complete.

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Step 12 – Verify Data Mover 3 is in a reset state.

A. Issue the command /nasmcd/getreason you may see one of the following in the
output…

10 - slot_0 primary control station

0 - slot_2 reset
0 - slot_3 reset

or

10 - slot_0 primary control station

0 - slot_2 powered off
0 - slot_3 reset
or
10 - slot_0 primary control station
0 - slot_3 reset

Step 13 – Power off the Data Movers

A. Switch off both Data Mover switches on the Data Mover Enclosure (shaded gray)

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Step 14 – Reboot the Control Station

A. reboot -f -n

Step 15 – Log into the Control Station and Change User to Root

A. su (and enter password)

Step 16 – Shut Down the Control Station

A. Issue the command /sbin/shutdown –h now

Step 17 – Power off the NS600 cabinet.

A. Power off the NS600 using the two circuit breakers at the top of the cabinet (shaded
gray). This will cause the batteries to take over and do a “clean” shutdown of the
backend.

Note: If you can not use the circuit breakers to power down the NS600 array, then skip
this step and perform Step 17-B and Step 17-C starting on Page 6.

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B. Note: Perform this step only if you can not power down the array using the circuit
breakers.

Power off the Stand-by Power Supply (shaded gray) with the two power
switches. The batteries will take over and properly shut down the Storage
Processors and the first DAE. This takes approximately 90 seconds.

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C. Note: Perform this step only if you can not power down the array using the circuit
breakers.

Power off each additional DAE (shaded gray) in the NS600 array using the two
switches on the DAEs.

The NS600 is now successfully powered down.

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Powering On the NS600

Step 1 – Power on the NS600 cabinet.

A. Make sure the Data Movers are turned off. Refer to Step 7A on Page 3.

B. Power on the NS600 using the two circuit breakers at the top of the cabinet. This will
power on the backend. Refer to Figure 2 on Page 4.

Note: If you did not power down using the circuit breakers as described in Step 17-A on
Page 5, reverse Step 17-C then Step 17-B and then continue with Step 2 on this page.

Step 2 – Monitor the boot progress of the Storage Processors.

A. Use the Fault LED on each Storage Processor to monitor the boot status. You
should see the amber LED blinking as the SP boots. When the SP is up the fault
LED is not lit. The amber fault LED is located next to the Ethernet port on each SP.

Note: Always wait until both SPs are up before proceeding to the next step.

LED

LED

Figure 3

Step 3 – Power on Data Movers.

A. Make sure that both backend Storage Processors are up.

B. Power on the Data Movers using the two switches on the Data Mover Enclosure.
Refer to Figure 1 on Page 3.

Step 4 – Monitor the boot progress of the Data Movers.

A. Use the same fault LED indicator as described in Step 2 to monitor the boot status of
the Data Movers but now use the LED on each Data Mover.

Note: Always wait until both Data Movers are up before proceeding to the next step.

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Step 5 – Log into the Control Station and Change User to Root

A. su (and enter password)

Step 6 – Reboot the Control Station.

A. reboot -f -n

Step 7 – Verify NBS access.

A. Log into the Control Station after reboot completes.

B. Issue the command df. The result should be as follows…

Note: It may take a couple of minutes for /nbsnas, /nas, /nas/var and /nas/dos to show in
the df.

Filesystem 1k-blocks Used Available Use%Mounted on

/dev/hda3 2063536 639184 1319528 33% /
/dev/hda1 31079 2747 26728 10% /boot
none 256692 0 256692 0% /dev/shm
/dev/nde1 1818352 409708 1316272 24% /nbsnas
/dev/ndf1 1818352 45720 1680260 3% /nas/var
/dev/nda1 136368 42688 93680 32% /nas/dos
/dev/hda5 2063504 387032 1571652 20% /nas

Note: If /nbsnas, /nas, /nas/dos, and /nas/var are not mounted please refer to Primus
emc61811 for assistance.

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