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ddhyett
1 Copper

Will EMC ever properly support AFTD's bigger than 4TB?

I notice that even in the Networker 8 documentation, the maximum value for the AFTD Volume Default Capacity is still 4TB!

Although I have been using 10TB AFTD's sucessfully for a while now (on 7.6.3), it's a real pain not knowing the current volume capacity without having to run OS commands on the storage node. This is due to this OLD limit on Volume Default Capacity. How hard is this to fix?

Has anyone tried this on 8.0 to see if they fixed it and forgot to change the docs?

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1 Reply
Bebo2k
3 Zinc

Re: Will EMC ever properly support AFTD's bigger than 4TB?

Hi Denman,

the Volume Default Capacity attribute is an arbitrary value that is an estimate of what the volume capacity is likely to be. It has no impact on how much data is actually written to a volume. If the value is not set correctly, the percent used calculation will not be correct. For FTDs, the Volume Default Capacity is a hard limit to the amount of data that can be written to the device. You are correct that there is a limitation where the value for the Volume Default Capacity attribute must be set to less than 4 TB. ( This is still in NetWorker 7.6.x and 8.0.x ) , But, this limitation applies to the normal FTD not the Advanced File Type Device (AFTD) , where AFTD device ignores the Volume Default Capacity value to allow dynamic expansion of disk space. So  the Volume Default Capacity value is not applied on the AFTD devices, while it is applied on the FTD devices.

Hope this help you.

Ahmed Bahaa

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