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Power off DMX 4
Hi everyone.
My customer needs to power off his dmx 4 for 3 hours, we have to help, but I need some help because they works with SRDF, but only one needs down.
I use some commands but what I need to check before down in this case with srdf??
Thx in advance
My customer needs to power off his dmx 4 for 3 hours, we have to help, but I need some help because they works with SRDF, but only one needs down.
I use some commands but what I need to check before down in this case with srdf??
Thx in advance
SANitizer
21 Posts
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December 14th, 2008 20:00
This can be run once all I/O to the box is halted.
All RDF volumes need to be made NR on the link.
Once this is done the CE or the remote change team can confirm all I/O is stopped.
The power down script will destage all cache to the disk directors it will then offline all FA,Escon and RDF directors.
Once this is complete the box will be in a state to be powered off.
The script will tell the CE or PSE when it is good to power off.
It will also give explicite instructions on how to power off all the bays starting with the storage bays.
Once all the switches have been turned off the DMX will after a number of minutes power down.
The power up sequence is the opposite to the power down sequence.
When the box is fully up all Disk Directors will be online all other directors will be OFFLINE. Here you will need a CE or the remote change team to bring them all online again.
Once all driectors are online you can start to bring your hosts online to the DMX and spin up all RDF volumes.
Your local CE or the remote team can assist with offing the RDF volumes prior to this activity.
Hope this is helpful.
xe2sdc
2.8K Posts
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December 5th, 2008 12:00
dynamox
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20.4K Posts
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December 5th, 2008 13:00
symcfg list -sid -RA ALL
i had an instance where DMX3000 was brought offline and after it was brought back online the RA groups did not come back online, so i had to manually bring them online using:
symcfg -sid -RA # online
chiren
17 Posts
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February 11th, 2009 17:00
chiren
17 Posts
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February 11th, 2009 18:00
"Perform these steps to power down the Symmetrix DMX-4, using the
PDP power switches located on the rear door of the system bay and
storage bays:
1. Stop all processes to the Symmetrix DMX-4.
2. On the rear door of the system bay (Figure 68 on page 282), press
the Zone A and Zone B PDP power switches to the down (O) OFF
position.
3. On the rear door of the storage bays (Figure 68 on page 282), press
the Zone A and Zone B PDP power switches to the down (O) OFF
position.
Note: The BBU modules automatically turn on when the Symmetrix
system detects loss of AC power. The BBU modules will maintain power
to the Symmetrix system for up to five minutes while the global memory
is vaulted to the vault drives."
Do we still need EMC/PSE assistance to perfrom a planned power-down/up of a DMX? Please do note that we do not have SRDF in our current environment.
And please help me understand how the procedure differs for other DMX models.
xe2sdc
2.8K Posts
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February 11th, 2009 22:00
An EMC CE will check that you really don't have IOs. An EMC CE will take care of broken parts on startup. An EMC CE will run health checks both before powering down and resuming your storage.
Yes it costs .. but worth the cost.
Message was edited by:
Stefano Del Corno
pappc
52 Posts
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February 12th, 2009 12:00
"Perform these steps to power down the Symmetrix system using the
AC (black) power switch located on the rear door of the Symmetrix
system.
1. Stop all processes to the Symmetrix DMX systems.
Note: All pending write operations should complete within five minutes.
If a device fails to complete its write operations within this time period, it
could indicate a problem with that device. Call the EMC Service Support
Center for assistance, if necessary.
2. Press the AC (black) power switch on the rear door (Figure B-1 on
page B-2) to the down (O) position. Do not press the EPO (red)
switch."
As Stefano mentioned, it's always recommended that an EMC Field Representative be present for power down/power up sequences on Symmetrix DMX family products; however, it's not a requirement.
Hope this helps,
PSE Chris
Rasmmacias
108 Posts
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February 24th, 2009 03:00
You need to check the parameter in bin file for this:
RDF
Force RAs Links off-line after power-up? YES