11-19-2014 10:24 PM
Hello Friends,
I need yr help to fix the issue. I am having netbackup in guc cluster.
ON Main site there are 3 media servers
1) Main media1 - windows vwware host
2)Main media 2 - 5220 appliance
3) Main media 3 - 5230 apliance
The same setup on dr site.
1) dr Main media1 - windows vwware host
2)dr Main media 2 - 5220 appliance
3) dr Main media 3 - 5230 apliance
I have created a storage unit
on Main media 3
disk type is pure disk
and for load balancing on storage unit i have used following media servers
(Main media 3 , Main media 2)
I am taking the backup using the san client.
what i have observed is when ever my backup stream goes through main media 2 it fails intermediantly error 84 media write error
HOwever when the backup goes through main media 3 its runs perfectly fine.
main-media-3.Settings> NetBackup DataBuffers Number Show
NUMBER_DATA_BUFFERS : 30 (Default)
NUMBER_DATA_BUFFERS_DISK : 30 (Default)
NUMBER_DATA_BUFFERS_FT : 16 (Default)
NUMBER_DATA_BUFFERS_RESTORE : 30 (Default)
main-media-3.Settings> NetBackup DataBuffers Size Show
SIZE_DATA_BUFFERS : 262144 (Default)
SIZE_DATA_BUFFERS_DISK : 262144 (Default)
SIZE_DATA_BUFFERS_FT : 262144 (Default)
main-media-2.Settings> NetBackup DataBuffers Number Show
NUMBER_DATA_BUFFERS : 30 (Default)
NUMBER_DATA_BUFFERS_DISK : 30 (Default)
NUMBER_DATA_BUFFERS_FT : 16 (Default)
NUMBER_DATA_BUFFERS_RESTORE : 30 (Default)
main-media-2.Settings> NetBackup DataBuffers Size Show
SIZE_DATA_BUFFERS : 262144 (Default)
SIZE_DATA_BUFFERS_DISK : 262144 (Default)
SIZE_DATA_BUFFERS_FT
Your help is highly appreciated.
11-25-2014 01:16 AM
Hello,
How many streams are you writing at the same time?
11-25-2014 02:11 AM
each policy at the max 3 -4 streams and the num of policy i am having is close to 100. However jobs are schedule at a differnt time. And 40% jobs are configured for dr appliance.
11-26-2014 05:23 AM
I mean streams active at any given time on the storage unit (so max jobs running on that storage unit)