SAN best practices
04 January 2010, 01:26 PM
#1
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SAN best practices
Has anyone seen any best practices for configuring a SAN? Are there any recommended standards regarding LUN assignment and clustering groups?
Mostly for vSphere and SQL but a few other Microsoft bits as well.
Darren
Mostly for vSphere and SQL but a few other Microsoft bits as well.
Darren
04 January 2010, 09:14 PM
#2
I assume you will be running Vsphere on server hardware with HBA cards and fibre channel SAN storage?
I am by no means an expert in this area, but have been doing some work with our EMC corporate SAN in this area recently.
Need more detail on the SQL databases - specifically around transactions, ie volume of inserts / updates against reads or deletions.
I am by no means an expert in this area, but have been doing some work with our EMC corporate SAN in this area recently.
Need more detail on the SQL databases - specifically around transactions, ie volume of inserts / updates against reads or deletions.
05 January 2010, 11:39 AM
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Thanks Tarmac,
I've managed to get some Best practices from Dell\EMC. Yes, vsphere on three servers all connected via HBA 4GB to Fibre SAN in Multiple Raid5 arrays.
I've got not idea about the SQL figures yet, no one is talking about it yet, it's a few months off currently.
Darren
I've managed to get some Best practices from Dell\EMC. Yes, vsphere on three servers all connected via HBA 4GB to Fibre SAN in Multiple Raid5 arrays.
I've got not idea about the SQL figures yet, no one is talking about it yet, it's a few months off currently.
Darren
05 January 2010, 12:47 PM
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My main question is regarding LUN assignment. If you have 6 Disks in a RAID5 (not my choice or RAID) is it better to have a single LUN for the entire data or multiple smaller LUNS?
Currently they have been built as 400GB Lun's but I am not sure if we should have one LUN of 1.7TB and the VM servers uses that bigger volume.
That reason I ask is because the way it's been built means we lose space at the end of each LUN. Currently the LUNS are 400GB and all our VM Servers are 140GB. 400GB minus two servers at 140GB means we are left with 120GB. We can't use this curently.
They are all in the same Storage Group and we will be running Vmotion etc.
Darren
Currently they have been built as 400GB Lun's but I am not sure if we should have one LUN of 1.7TB and the VM servers uses that bigger volume.
That reason I ask is because the way it's been built means we lose space at the end of each LUN. Currently the LUNS are 400GB and all our VM Servers are 140GB. 400GB minus two servers at 140GB means we are left with 120GB. We can't use this curently.
They are all in the same Storage Group and we will be running Vmotion etc.
Darren
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