Device SA Status

Daniel,

It would be helpful if you could provide a text/screen capture of the outputs you're referring to here.. but here are my thoughts:

Device SA Status refers to the status of a device on a specific front end port. For example, you have the ability to set a device as Not_Ready on one FA port, and leave it in a RW_Enabled state on another FA port.

The Device Status you're referring to is most likely either the overall status of the logical volume (eg NR, RW_Enable, RO), or the SRDF status of the device (eg Split, Consistent, FailedOver, Partitioned, etc).

Thanks,

- Sean

Hi Sean, specifically, we have one meta device which is in a Synch'd RDF state and the Device Status is Write Disabled and Device SA Status is Write Disabled.

However, I saw on another meta device on the same frame that is also in a Synch'd RDF state with Device Status of Write Disabled and Devices SA Status of Ready.

Each device is only across the standard 2 FAs and should add that they are on different front-end adapters.. Not really understanding the difference here. You also mentioned the ability to chnage the status of Device SA?

Thanks

EMC have provided a response that goes some way to explaining the differences.. In both cases the devices are write disabled to the host, the difference is that one device will be ready to the host attached, which means that it will be able to read data from it. This was probably due to the device being set USR NR at some stage and readied again using the symdev ready command which would change the SA status from Write Disabled to Ready.