SAN reboot for oracle DB at ASM in linux RAC

Hi Experts,
we use 10.2.0.4 database in ASM at oracle RAC in red hat 5 linux.
we use 3 directoey ( asm, crs, and database)
I got notes that SAN box (support SAM in database) will be reboot.
Under this condition, what do i need to do? shutdown instance? database? crs? or asm instance?
Thanks for your help?
JIM

user589812 wrote:
what means is about start all oracle related services in sequence?CRS will start the complete Oracle cluster s/w cluster for you - ASM, RAC, nodeapps, etc.
Usually, the only effort required is simply hitting the reset/power on button - as the o/s will boot, CRS will start and it will in turn bring up the s/w stack. No manual intervention required. (unless you on purpose configured it differently)
Based on Billy suggestion, can I use srvctl stop nodeapps -n all and #ORA_CRS_HOME/bin/crsctl stop crsNo - my suggestion is that before the SAN maintenance window period start, you do a "+shutdown -h now+" on all cluster nodes to halt/powerdown each and every RAC server.
And after the SAN maintenance period is over, and the SAN available again, ssh into the LoM (Lights Out Management) console of each server and do a "+start SYS+" (or equivalent) to powerup the server.
In other words, with the SAN down/busy rebooting/undergoing maintenance, I would not want to have my RAC servers up and running as there is no storage layer to run them on. IMO, it is a lot safer to have these servers powered down to during such a maintenance period.
PS. I have even had the odd case that during SAN maintenance power cables being pulled, Interconnect switches accidentally reset and so on - or you could have some bright spark also shutting down the aircon with the SAN and your RAC servers suffering heat problems and potential damage while running. So my question is - why should I take the risk of keeping my RAC servers up when the storage layer is not there and the cluster is broken and useless? Surely it makes a lot more sense to power down those servers too and then only power them on again when the maintenance period is over and the SAN (and data centre) is in a proper running state again.

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Total System Global Area 167772160 bytes
Fixed Size 1247900 bytes
Variable Size 62915940 bytes
Database Buffers 100663296 bytes
Redo Buffers 2945024 bytes
Database mounted.
Database opened.er database mount;
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NAME TYPE VALUE
control_file_record_keep_time integer 7
control_files string C:\ORADATA\ORCL\CONTROL01.CTL,
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L
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Variable Size 62915940 bytes
Database Buffers 100663296 bytes
Redo Buffers 2945024 bytes
Database mounted.
Database opened.
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spfile string C:\ORACLE\PRODUCT\10.2.0\DB_2\
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