Cisco Support Community

Boot from SAN, yes or no ??

I see more and more partners and customers, that oppose to do boot from a network (be it FC, FCoE, iSCSI, PXE); they prefer installation on local disk, USB and / or SD. Any feedback from the field.

One should also be aware, that W2012 (R2) we SMB V3 storage (pushed by MSFT of course) doesn't support boot over the network; W2012 has to be installed on a local device.


Cisco Employee

Boot from SAN, yes or no ??


The problem in not use boot from SAN is the data management, is decentralized. (I'm not talking about performance yet).

So far, I never did a deploy of UCS with boot from local disks, all booting from SAN (FC,FCoE,iSCSI).

Is there better place to keep data than a storage?

Using boot from SAN and Service Profiles of UCS, you can delivery a solution than can restore any server in minutes without stress.

Of course, if we talking a very small deployment, the boot from SAN doesn't make a big impact.

Boot from SAN, yes or no ??

Boot from SAN is not boot from network. To the host OS a boot from SAN LUN is a local disk.

99.9% of our customers are boot from SAN, this includes mostly vSphere but we do have some Hyper-V customers that are boot from SAN for Windows 2008/2012 R2 Hyper-V hosts.

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