blakej's picture

Instructions for setting up a second MDC for Xsan failover

Hi Everyone,

Are there any instructions available about how to configure for example a Mac Mini to act as a secondary MDC incase the primary MDC fails?

StorNext client won't mount SAN volume after RAID controller failure

I had a RAID controller die in one of the RAID units in our SAN. I was able to replace it OK and after some messing with cvlabel (the new controller was showing up as a duplicate LUN), the XSAN MDCs are happy and all of the Mac clients are happy again.

However, I have one StorNext client for a Linux system that refuses to mount the SAN volume after the change was made. The lines I found in /usr/cvfs/debug/mount.SAN.out have this to say:

Mounting filesystem SAN on /Volumes/SAN
nthreads=12, ReadOnly=no
buffers=yes, sparse=yes, protect_alloc=no, syslog=info, allowdupmount=no
timeout=100, recon=hard, retrans=12, mnt_recon=hard, mnt_retrans=1
Error mounting possibly due to unavailable disks.
mount.cvfs: Can't mount filesystem 'SAN': No such device
System log may contain additional details.

Any ideas what to try next? The only thing that has changed is the RAID controller (1 out of 6).

Thanks!
Matt

Apple Knowledge Base's picture

Apple Web Server notifications (Apple KB)

This article provides credit to people who have reported potential security issues in Apple's web servers.

Read more: https://support.apple.com/en-us/HT201536

ssotoa's picture

New Apple Xsan Distributed LAN Client

Tags: 

New Apple Xsan Distributed LAN Client Functionality Enables Users to Access Full Benefits of Quantum's StorNext Platform Through Simple Ethernet Connection

Apple Knowledge Base's picture

Promise VTrak: Configuring for optimal performance (Apple KB)

Configure Promise VTrak RAIDs for best performance using the guidelines in this article.

Read more: https://support.apple.com/en-us/HT200273

Apple Knowledge Base's picture

Upgrading from Xsan 1.4.2 to Xsan 2.x (Apple KB)

Follow these instructions to upgrade your Xsan 1.4.2 SAN to Xsan 2.

Read more: https://support.apple.com/en-us/HT200102

wrstuden's picture

Anyone trying out El Capitan?

Forums: 

Anyone trying out the new release?

Note: this year is different from the past and the developer forums are indexed by the major search engines, so anything discussed there is not as restricted as years past.

jpkang's picture

Xsan4 with StorNext Windows Client Configuration Help!

I wish there was training available or at least more online documentation than what I have found for Xsan4, but there was not and so I wanted to share with you all my story and knowledge. I only had experience with Xsan2 and Xsan4 is completely different. They simplified configuration and do not provide a granular configuration in the GUI, as they did in Xsan2.

It had taken me over 3 weeks to troubleshoot and resolve my issue. Only because I have found that some of the new hardware that we had purchased were at fault. We always assume that new hardware is in good working order straight out of the box.

My advice to you ... always keep in mind that EVERY component that you have in your implementation can be FAULTY/BAD! Never overlook any possibility!!

Because I have ran into issues immediately during my initial setup, I immediately blamed Xsan version 4, but guess what!? ... I'm now using it and it's doing everything I need it to do!!

Apple Knowledge Base's picture

AppleCare Xsan Support Agreement: How to find the registration number (Apple KB)

Learn how to find the registration number of an AppleCare Xsan Support Agreement.

Read more: https://support.apple.com/en-us/HT200278

Apple Knowledge Base's picture

If your Xsan volume does not start after enabling native extended attributes (Apple KB)

Learn what to do if you see an Xsan-related panic in your server logs that mentions an Inode version mismatch.

Read more: https://support.apple.com/en-us/HT204345

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