Steps to power down or reboot a cell without affecting ASM

after applying patch on storage cell some of the patch requires that the cell be restarted.
this is my first time to do the rolling restart…. šŸ˜€ šŸ˜€ šŸ˜€

When performing maintenance on Exadata Cells, it may be necessary to power down or reboot the cell.
If a storage server is to be shut down when one or more databases are running,
then verify that taking the storage server offline will not impact Oracle ASM disk group
and database availability. The ability to take Oracle Exadata Storage Server offline without
affecting database availability depends on the level of Oracle ASM redundancy used on the affected
disk groups, and the current status of disks in other Oracle Exadata Storage Servers that have mirror
copies of data as Oracle Exadata Storage Server to be taken offline.

1. By default, ASM drops a disk shortly after it is taken offline; however, you can set the DISK_REPAIR_TIME attribute
to prevent this operation by specifying a time interval to repair the disk and bring it back online.
The default DISK_REPAIR_TIME attribute value of 3.6h should be adequate for most environments

To check repair times for all mounted disk groups – log into the ASM instance and perform the following query

set lines 200
col VALUE format a30
select dg.name,a.value from v$asm_diskgroup
dg, v$asm_attribute a where dg.group_number=a.group_number and
a.name='disk_repair_time'; 

NAME                           VALUE
------------------------------ ------------------------------
DATA_EXA2                      3.6h
RECO_EXA2                      3.6h

If you need to offline the ASM disks for more than the default time of 3.6 hours then adjust the parameter by issuing the command below as an example

ALTER DISKGROUP DATA SET ATTRIBUTE 'DISK_REPAIR_TIME'='8.5H';


2. Next you will need to check if ASM will be OK if the grid disks go OFFLINE.

The following command should return ‘Yes’ for the grid disks being listed:

cellcli -e list griddisk attributes name,asmmodestatus,asmdeactivationoutcome 

	[root@exa2cel01 ~]# cellcli -e list griddisk attributes name,asmmodestatus,asmdeactivationoutcome
         DATA_EXA2_CD_00_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_01_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_02_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_03_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_04_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_05_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_06_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_07_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_08_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_09_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_10_exa2cel01       ONLINE  Yes
         DATA_EXA2_CD_11_exa2cel01       ONLINE  Yes
         DBFS_DG_CD_02_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_03_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_04_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_05_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_06_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_07_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_08_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_09_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_10_exa2cel01         ONLINE  Yes
         DBFS_DG_CD_11_exa2cel01         ONLINE  Yes
         RECO_EXA2_CD_00_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_01_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_02_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_03_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_04_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_05_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_06_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_07_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_08_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_09_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_10_exa2cel01       ONLINE  Yes
         RECO_EXA2_CD_11_exa2cel01       ONLINE  Yes

3. If one or more disks return asmdeactivationoutcome=’No’, you should wait for some time and repeat step #2. Once all disks return return asmdeactivationoutcome=’Yes’, you can proceed with taking the griddisk offline in step #4.

Note: Taking the storage server offline when one or more grid disks return asmdeactivationoutcome=’No’ will cause Oracle ASM to dismount the affected disk group,
causing the databases to shut down abruptly.

4. Run cellcli command to Inactivate all grid disks on the cell you wish to power down/reboot:

cellcli -e alter griddisk all inactive

	[root@exa2cel01 ~]# cellcli -e alter griddisk all inactive
	GridDisk DATA_EXA2_CD_00_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_01_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_02_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_03_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_04_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_05_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_06_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_07_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_08_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_09_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_10_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_11_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_02_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_03_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_04_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_05_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_06_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_07_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_08_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_09_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_10_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_11_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_00_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_01_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_02_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_03_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_04_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_05_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_06_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_07_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_08_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_09_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_10_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_11_exa2cel01 successfully altered

* Please note – This action could take 10 minutes or longer depending on activity.
It is very important to make sure you were able to offline all the disks successfully before shutting down the cell services.
Inactivating the grid disks will automatically OFFLINE the disks in the ASM instance.

5. Confirm that the griddisks are now offline by performing the following actions:

(a) Execute the command below and the output should show asmmodestatus=UNUSED and asmdeactivationoutcome=Yes
for all griddisks once the disks are offline in ASM. Only then is it safe to proceed with shutting down or restarting the cell:

cellcli -e list griddisk attributes name,asmmodestatus,asmdeactivationoutcome

	[root@exa2cel01 ~]# cellcli -e list griddisk attributes name,asmmodestatus,asmdeactivationoutcome
         DATA_EXA2_CD_00_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_01_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_02_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_03_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_04_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_05_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_06_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_07_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_08_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_09_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_10_exa2cel01       OFFLINE         Yes
         DATA_EXA2_CD_11_exa2cel01       OFFLINE         Yes
         DBFS_DG_CD_02_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_03_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_04_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_05_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_06_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_07_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_08_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_09_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_10_exa2cel01         OFFLINE         Yes
         DBFS_DG_CD_11_exa2cel01         OFFLINE         Yes
         RECO_EXA2_CD_00_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_01_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_02_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_03_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_04_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_05_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_06_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_07_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_08_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_09_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_10_exa2cel01       OFFLINE         Yes
         RECO_EXA2_CD_11_exa2cel01       OFFLINE         Yes

( there has also been a reported case of asmmodestatus= OFFLINE: Means Oracle ASM has taken this grid disk offline.
This status is also fine and can proceed with remaining instructions)

(b) List the griddisks to confirm all now show offline:

cellcli -e list griddisk 

	[root@exa2cel01 ~]# cellcli -e list griddisk
         DATA_EXA2_CD_00_exa2cel01       inactive
         DATA_EXA2_CD_01_exa2cel01       inactive
         DATA_EXA2_CD_02_exa2cel01       inactive
         DATA_EXA2_CD_03_exa2cel01       inactive
         DATA_EXA2_CD_04_exa2cel01       inactive
         DATA_EXA2_CD_05_exa2cel01       inactive
         DATA_EXA2_CD_06_exa2cel01       inactive
         DATA_EXA2_CD_07_exa2cel01       inactive
         DATA_EXA2_CD_08_exa2cel01       inactive
         DATA_EXA2_CD_09_exa2cel01       inactive
         DATA_EXA2_CD_10_exa2cel01       inactive
         DATA_EXA2_CD_11_exa2cel01       inactive
         DBFS_DG_CD_02_exa2cel01         inactive
         DBFS_DG_CD_03_exa2cel01         inactive
         DBFS_DG_CD_04_exa2cel01         inactive
         DBFS_DG_CD_05_exa2cel01         inactive
         DBFS_DG_CD_06_exa2cel01         inactive
         DBFS_DG_CD_07_exa2cel01         inactive
         DBFS_DG_CD_08_exa2cel01         inactive
         DBFS_DG_CD_09_exa2cel01         inactive
         DBFS_DG_CD_10_exa2cel01         inactive
         DBFS_DG_CD_11_exa2cel01         inactive
         RECO_EXA2_CD_00_exa2cel01       inactive
         RECO_EXA2_CD_01_exa2cel01       inactive
         RECO_EXA2_CD_02_exa2cel01       inactive
         RECO_EXA2_CD_03_exa2cel01       inactive
         RECO_EXA2_CD_04_exa2cel01       inactive
         RECO_EXA2_CD_05_exa2cel01       inactive
         RECO_EXA2_CD_06_exa2cel01       inactive
         RECO_EXA2_CD_07_exa2cel01       inactive
         RECO_EXA2_CD_08_exa2cel01       inactive
         RECO_EXA2_CD_09_exa2cel01       inactive
         RECO_EXA2_CD_10_exa2cel01       inactive
         RECO_EXA2_CD_11_exa2cel01       inactive
	[root@exa2cel01 ~]#

6. You can now reboot the cell. Oracle Exadata Storage Servers are powered off and rebooted using the Linux shutdown command.

(a) The following command will shut down Oracle Exadata Storage Server immediately: (as root):

#shutdown -h now
(When powering off Oracle Exadata Storage Servers, all storage services are automatically stopped.)

(b) The following command will reboot Oracle Exadata Storage Server immediately and force fsck on reboot:

#shutdown -F -r now

	[root@exa2cel01 ~]# shutdown -F -r now

	Broadcast message from root (pts/0) (Fri Feb  3 02:51:13 2012):

	The system is going down for reboot NOW!

7. Once the cell comes back online – you will need to reactive the griddisks:

cellcli -e alter griddisk all active 

	[root@exa2cel01 ~]# cellcli -e alter griddisk all active
	GridDisk DATA_EXA2_CD_00_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_01_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_02_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_03_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_04_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_05_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_06_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_07_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_08_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_09_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_10_exa2cel01 successfully altered
	GridDisk DATA_EXA2_CD_11_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_02_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_03_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_04_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_05_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_06_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_07_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_08_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_09_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_10_exa2cel01 successfully altered
	GridDisk DBFS_DG_CD_11_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_00_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_01_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_02_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_03_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_04_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_05_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_06_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_07_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_08_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_09_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_10_exa2cel01 successfully altered
	GridDisk RECO_EXA2_CD_11_exa2cel01 successfully altered
	[root@exa2cel01 ~]#

8. Issue the command below and all disks should show ‘active’:

cellcli -e list griddisk

	[root@exa2cel01 ~]# cellcli -e list griddisk
         DATA_EXA2_CD_00_exa2cel01       active
         DATA_EXA2_CD_01_exa2cel01       active
         DATA_EXA2_CD_02_exa2cel01       active
         DATA_EXA2_CD_03_exa2cel01       active
         DATA_EXA2_CD_04_exa2cel01       active
         DATA_EXA2_CD_05_exa2cel01       active
         DATA_EXA2_CD_06_exa2cel01       active
         DATA_EXA2_CD_07_exa2cel01       active
         DATA_EXA2_CD_08_exa2cel01       active
         DATA_EXA2_CD_09_exa2cel01       active
         DATA_EXA2_CD_10_exa2cel01       active
         DATA_EXA2_CD_11_exa2cel01       active
         DBFS_DG_CD_02_exa2cel01         active
         DBFS_DG_CD_03_exa2cel01         active
         DBFS_DG_CD_04_exa2cel01         active
         DBFS_DG_CD_05_exa2cel01         active
         DBFS_DG_CD_06_exa2cel01         active
         DBFS_DG_CD_07_exa2cel01         active
         DBFS_DG_CD_08_exa2cel01         active
         DBFS_DG_CD_09_exa2cel01         active
         DBFS_DG_CD_10_exa2cel01         active
         DBFS_DG_CD_11_exa2cel01         active
         RECO_EXA2_CD_00_exa2cel01       active
         RECO_EXA2_CD_01_exa2cel01       active
         RECO_EXA2_CD_02_exa2cel01       active
         RECO_EXA2_CD_03_exa2cel01       active
         RECO_EXA2_CD_04_exa2cel01       active
         RECO_EXA2_CD_05_exa2cel01       active
         RECO_EXA2_CD_06_exa2cel01       active
         RECO_EXA2_CD_07_exa2cel01       active
         RECO_EXA2_CD_08_exa2cel01       active
         RECO_EXA2_CD_09_exa2cel01       active
         RECO_EXA2_CD_10_exa2cel01       active
         RECO_EXA2_CD_11_exa2cel01       active
	[root@exa2cel01 ~]#

9. Verify grid disk status:

(a) Verify all grid disks have been successfully put online using the following command:

cellcli -e list griddisk attributes name, asmmodestatus

	[root@exa2cel01 ~]# cellcli -e list griddisk attributes name, asmmodestatus
         DATA_EXA2_CD_00_exa2cel01       SYNCING
         DATA_EXA2_CD_01_exa2cel01       SYNCING
         DATA_EXA2_CD_02_exa2cel01       SYNCING
         DATA_EXA2_CD_03_exa2cel01       SYNCING
         DATA_EXA2_CD_04_exa2cel01       SYNCING
         DATA_EXA2_CD_05_exa2cel01       SYNCING
         DATA_EXA2_CD_06_exa2cel01       SYNCING
         DATA_EXA2_CD_07_exa2cel01       SYNCING
         DATA_EXA2_CD_08_exa2cel01       SYNCING
         DATA_EXA2_CD_09_exa2cel01       SYNCING
         DATA_EXA2_CD_10_exa2cel01       SYNCING
         DATA_EXA2_CD_11_exa2cel01       SYNCING
         DBFS_DG_CD_02_exa2cel01         ONLINE
         DBFS_DG_CD_03_exa2cel01         ONLINE
         DBFS_DG_CD_04_exa2cel01         ONLINE
         DBFS_DG_CD_05_exa2cel01         ONLINE
         DBFS_DG_CD_06_exa2cel01         ONLINE
         DBFS_DG_CD_07_exa2cel01         ONLINE
         DBFS_DG_CD_08_exa2cel01         ONLINE
         DBFS_DG_CD_09_exa2cel01         ONLINE
         DBFS_DG_CD_10_exa2cel01         ONLINE
         DBFS_DG_CD_11_exa2cel01         ONLINE
         RECO_EXA2_CD_00_exa2cel01       SYNCING
         RECO_EXA2_CD_01_exa2cel01       SYNCING
         RECO_EXA2_CD_02_exa2cel01       SYNCING
         RECO_EXA2_CD_03_exa2cel01       SYNCING
         RECO_EXA2_CD_04_exa2cel01       SYNCING
         RECO_EXA2_CD_05_exa2cel01       SYNCING
         RECO_EXA2_CD_06_exa2cel01       SYNCING
         RECO_EXA2_CD_07_exa2cel01       SYNCING
         RECO_EXA2_CD_08_exa2cel01       SYNCING
         RECO_EXA2_CD_09_exa2cel01       SYNCING
         RECO_EXA2_CD_10_exa2cel01       SYNCING
         RECO_EXA2_CD_11_exa2cel01       SYNCING
	[root@exa2cel01 ~]#

(b) Wait until asmmodestatus is ONLINE for all grid disks. Each disk will go to a ‘SYNCING’ state first then ‘ONLINE’. The following is an example of the output:
(c) Oracle ASM synchronization is only complete when all grid disks show asmmodestatus=ONLINE.

( Please note: this operation uses Fast Mirror Resync operation – which does not trigger an ASM rebalance.
The Resync operation restores only the extents that would have been written while the disk was offline.)

It took almost 1hour to complete.

[root@exa2cel01 ~]# cellcli -e list griddisk attributes name, asmmodestatus
DATA_EXA2_CD_00_exa2cel01       ONLINE
DATA_EXA2_CD_01_exa2cel01       ONLINE
DATA_EXA2_CD_02_exa2cel01       ONLINE
DATA_EXA2_CD_03_exa2cel01       ONLINE
DATA_EXA2_CD_04_exa2cel01       ONLINE
DATA_EXA2_CD_05_exa2cel01       ONLINE
DATA_EXA2_CD_06_exa2cel01       ONLINE
DATA_EXA2_CD_07_exa2cel01       ONLINE
DATA_EXA2_CD_08_exa2cel01       ONLINE
DATA_EXA2_CD_09_exa2cel01       ONLINE
DATA_EXA2_CD_10_exa2cel01       ONLINE
DATA_EXA2_CD_11_exa2cel01       ONLINE
DBFS_DG_CD_02_exa2cel01         ONLINE
DBFS_DG_CD_03_exa2cel01         ONLINE
DBFS_DG_CD_04_exa2cel01         ONLINE
DBFS_DG_CD_05_exa2cel01         ONLINE
DBFS_DG_CD_06_exa2cel01         ONLINE
DBFS_DG_CD_07_exa2cel01         ONLINE
DBFS_DG_CD_08_exa2cel01         ONLINE
DBFS_DG_CD_09_exa2cel01         ONLINE
DBFS_DG_CD_10_exa2cel01         ONLINE
DBFS_DG_CD_11_exa2cel01         ONLINE
RECO_EXA2_CD_00_exa2cel01       ONLINE
RECO_EXA2_CD_01_exa2cel01       ONLINE
RECO_EXA2_CD_02_exa2cel01       ONLINE
RECO_EXA2_CD_03_exa2cel01       ONLINE
RECO_EXA2_CD_04_exa2cel01       ONLINE
RECO_EXA2_CD_05_exa2cel01       ONLINE
RECO_EXA2_CD_06_exa2cel01       ONLINE
RECO_EXA2_CD_07_exa2cel01       ONLINE
RECO_EXA2_CD_08_exa2cel01       ONLINE
RECO_EXA2_CD_09_exa2cel01       ONLINE
RECO_EXA2_CD_10_exa2cel01       ONLINE
RECO_EXA2_CD_11_exa2cel01       ONLINE

Before taking another storage server offline, Oracle ASM synchronization must complete on the restarted Oracle Exadata Storage Server.
If synchronization is not complete, then the check performed on another storage server will fail. The following is an example of the output:

its time to restart another Cell… 13 to go.

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