rlarrea
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Evacuation of SAN

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I have purchased a new Equallogic 6100 and want that to become my production SAN and evacuate my older PS5000. I have the 6100 in the same group as the 5000 and it has just finished verifying its raid set and now has about half my data 2TB and the 5000 has the other half. I did notice that the new array has about 32 ISCSI connections and the old array has 57. Should those number of connections be the same on both arrays? Or when I do the evacuation all the the remaining connections will move over?

Thanks

Rick

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Moderator
Moderator

Re: Evacuation of SAN

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The connection count per array is controlled by the Network Load Balancer and may not be equal across both members.  When you remove the PS5000 from the group, the connections will move to the remaining member(s) in that pool.

A good practice to removing a member, has been to first create a temporary pool (call it anything you want), then first move the PS5000 to it.  Once safely in its own pool, you can then remove it from the group.

-joe

-Joe

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3 Replies
Moderator
Moderator

Re: Evacuation of SAN

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The connection count per array is controlled by the Network Load Balancer and may not be equal across both members.  When you remove the PS5000 from the group, the connections will move to the remaining member(s) in that pool.

A good practice to removing a member, has been to first create a temporary pool (call it anything you want), then first move the PS5000 to it.  Once safely in its own pool, you can then remove it from the group.

-joe

-Joe

Social Media and Community Professional
#IWork4Dell
Get Support on Twitter - @dellcarespro

Follow me on Twitter: @joesatdell 

rlarrea
6 Indium

Re: Evacuation of SAN

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Joe can you tell me why it is a good practice to create the temp pool first before removing?

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Moderator
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Re: Evacuation of SAN

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Members can be deleted directly from the production pool, moving it out of the production pool first is just an added level of “comfort” that I have seen used.  This also allows you to keep the group configuration on the member without it handling any IO, until absolutely sure you what to remove the member.

-joe

 

-Joe

Social Media and Community Professional
#IWork4Dell
Get Support on Twitter - @dellcarespro

Follow me on Twitter: @joesatdell 

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