toasters June 2013

toasters@lists.teaparty.net

21 participants
13 discussions

Fixing LUN Misalignment on Physical Machines
by Philbert Rupkins 08 Jun '13

08 Jun '13

Hello Toasters, I found a ton of information regarding fixing misalignment issues in virtual environments. However, I am interested in how to resolve misalignment on a physical machine. The only way I am aware of is to create a new LUN and perform a host based copy of the data to the new LUN. Is this my only option or are there any other methods that require less overhead/downtime? Here is the situation: Server OS = Windows 2008 Server LUN Type = Windows 2008 Partition Type = MBR (W2K3) How did we get a W2K3 MBR partition out of a Windows 2008 server? We didnt. The LUN was originally created by a W2K3 machine while using an EMC storage array. The W2K3 server was eventually retired and the LUN was presented to the W2K8 machine. The LUN was then migrated to a NetApp array using a block for block mirror of the data from the EMC LUN to the NetApp LUN. Unfortunately, the NetApp LUN was created as a windows_2008 lun type because it was going to be used by a Windows 2008 server - this is where the mistake was made. So now, we have a Windows Server 2008 box with a disk using a 2003-MBR partition type on windows_2008 lun type. Again, I'd like to fix the misalignment issue in the easiest way possible. Creating a new lun and performing a host based copy of the data is doable but requires a fair amount of overhead. Just wondering if there is a more efficient way to resolve lun alignment issues with physical machines. Thanks! -Phil

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SAS port speeds
by Jeff Cleverley 07 Jun '13

07 Jun '13

Greetings, We have a stack of DS4243 shelves for a NearStore running SATA/BSAS drives. We will be getting some DS4246 with the 4TB FSAS drives. I know it is supported to put them in the same stack, my understanding is everything in the stack will drop to 3 GB/s speed. Since the HBAs run 2 ports on one chip, does that one chip control the speed for both ports A/B, or are they separate? Thanks, Jeff -- Jeff Cleverley Unix Systems Administrator 4380 Ziegler Road Fort Collins, Colorado 80525 970-288-4611

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growing a vol on vFiler that is a source in Vfiler DR relationship
by Iluhes 05 Jun '13

05 Jun '13

Hello Toasters, What is the best procedure to grow a volume on the vFiler that is a source in VFiler DR setup. Is there a need to break / queues replication somehow

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toasters June 2013