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<title>Apple Support - Most Recent Xsan Articles</title>
<link>http://www.apple.com/support/</link>
<description>Apple Support - Most Recent Xsan Articles from Apple Inc.</description>
<language>en-us</language>
<copyright>Copyright 2008 Apple Inc.</copyright>
<ttl>1440</ttl>
<pubDate>Wed, 27 Aug 2008 18:18:27 -0500</pubDate>
<category>Apple</category>
<generator>In house</generator>
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<item>
<title><![CDATA[Podcast Producer system requirements (Mac OS X 10.5)]]></title>
<description>Release date: Fri, 15 Aug 2008 21:10:10 -0500</description>
<link>http://support.apple.com/kb/HT2800</link>
<content:encoded><![CDATA[Podcast Producer system requirements (Mac OS X 10.5) ]]></content:encoded>
<pubDate>Fri, 15 Aug 2008 21:10:10 -0500</pubDate>
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<item>
<title><![CDATA[Xsan Help: Tips for avoiding unexpected hardware or performance issues]]></title>
<description>Release date: Thu, 14 Aug 2008 18:26:07 -0500</description>
<link>http://support.apple.com/kb/HT2786</link>
<content:encoded><![CDATA[Tips for avoiding unexpected hardware or performance issues. ]]></content:encoded>
<pubDate>Thu, 14 Aug 2008 18:26:07 -0500</pubDate>
</item>
<item>
<title><![CDATA[Xsan Help: Tips to avoid unexpected volume behavior]]></title>
<description>Release date: Thu, 14 Aug 2008 18:07:22 -0500</description>
<link>http://support.apple.com/kb/HT2784</link>
<content:encoded><![CDATA[Tips to avoid unexpected volume behavior. ]]></content:encoded>
<pubDate>Thu, 14 Aug 2008 18:07:22 -0500</pubDate>
</item>
<item>
<title><![CDATA[Xsan Help: Tips to avoid unexpected admin or client behavior]]></title>
<description>Release date: Thu, 14 Aug 2008 17:44:19 -0500</description>
<link>http://support.apple.com/kb/HT2783</link>
<content:encoded><![CDATA[Tips to avoid unexpected admin or client behavior. ]]></content:encoded>
<pubDate>Thu, 14 Aug 2008 17:44:19 -0500</pubDate>
</item>
<item>
<title><![CDATA[Xsan 1.1: Modify upgraded Xsan installations for increased performance and stability]]></title>
<description>Release date: Thu, 14 Aug 2008 16:42:55 -0500</description>
<link>http://support.apple.com/kb/HT2781</link>
<content:encoded><![CDATA[In Xsan 1.1, the default value for a volume's ThreadPoolSize parameter was changed from 16 to 128. Because the new default value is written to a volume's config file at the time of creation, you must manually edit the file to get this benefit for existing installations that were upgraded to 1.1. ]]></content:encoded>
<pubDate>Thu, 14 Aug 2008 16:42:55 -0500</pubDate>
</item>
<item>
<title><![CDATA[Xsan 1.4.2 or earlier: Configuring for optimal performance]]></title>
<description>Release date: Thu, 14 Aug 2008 16:31:53 -0500</description>
<link>http://support.apple.com/kb/HT2776</link>
<content:encoded><![CDATA[Many factors will impact performance when you copy files to and from Xsan volumes. While the following suggestions are not essential for proper function, they may improve file read and write speeds on an Xsan volume. This document applies to Xsan 1.4.2 or earlier. ]]></content:encoded>
<pubDate>Thu, 14 Aug 2008 16:31:53 -0500</pubDate>
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<item>
<title><![CDATA[Xsan: Managing video production workflow in relation to Xsan Volume bandwidth]]></title>
<description>Release date: Thu, 14 Aug 2008 16:11:13 -0500</description>
<link>http://support.apple.com/kb/HT2770</link>
<content:encoded><![CDATA[In a video production workflow that utilizes Xsan, video clips are copied to and from an Xsan Volume. Each copy operation is called a stream. Video production operations that require streaming video include ingest, editing and playout. Each concurrently accessed stream of video consumes a portion of the Xsan Volume&rsquo;s total minimum available bandwidth. It is important that the video editing workflow be managed so that the total minimum available bandwidth is not exceeded, as doing so may result in dropped frames. ]]></content:encoded>
<pubDate>Thu, 14 Aug 2008 16:11:13 -0500</pubDate>
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<item>
<title><![CDATA[Using Xsan 1.4 with Intel-based Macs]]></title>
<description>Release date: Thu, 14 Aug 2008 16:06:17 -0500</description>
<link>http://support.apple.com/kb/HT2766</link>
<content:encoded><![CDATA[The shrink-wrap retail version of Xsan 1.4 supports Intel-based Macintosh computers running Mac OS X or Mac OS X Server 10.4.7 or later with at least 512 MB RAM and Fibre Channel connectivity. ]]></content:encoded>
<pubDate>Thu, 14 Aug 2008 16:06:17 -0500</pubDate>
</item>
<item>
<title><![CDATA[Xsan: Guidelines for volume expansion]]></title>
<description>Release date: Thu, 14 Aug 2008 16:05:20 -0500</description>
<link>http://support.apple.com/kb/HT2769</link>
<content:encoded><![CDATA[When adding LUNs to an Xsan volume, follow these guidelines: ]]></content:encoded>
<pubDate>Thu, 14 Aug 2008 16:05:20 -0500</pubDate>
</item>
<item>
<title><![CDATA[Xsan 1.4.x and earlier: All controllers must be online when making SAN configuration changes]]></title>
<description>Release date: Wed, 30 Jul 2008 18:35:44 -0500</description>
<link>http://support.apple.com/kb/HT2308</link>
<content:encoded><![CDATA[In a storage area network (SAN) with multiple metadata controllers (MDCs), if one or more controllers are down while you are reconfiguring the SAN, those controllers may not synchronize with the updated configuration when they come back up. ]]></content:encoded>
<pubDate>Wed, 30 Jul 2008 18:35:44 -0500</pubDate>
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<item>
<title><![CDATA[Xsan 2 Administrator's Guide: Correction to page 21]]></title>
<description>Release date: Wed, 30 Jul 2008 18:32:27 -0500</description>
<link>http://support.apple.com/kb/HT2303</link>
<content:encoded><![CDATA[The Xsan 2 Administrator's Guide incorrectly states the &quot;Number of computers on a SAN (metadata controllers and clients) is limited to 64&quot; on page 21. ]]></content:encoded>
<pubDate>Wed, 30 Jul 2008 18:32:27 -0500</pubDate>
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<item>
<title><![CDATA[Xsan: Compatibility of SAN clients with Xsan and StorNext controllers]]></title>
<description>Release date: Wed, 25 Jun 2008 20:48:03 -0500</description>
<link>http://support.apple.com/kb/HT1517</link>
<content:encoded><![CDATA[Learn which versions of Xsan can be used in the same SAN with StorNext controllers, and which versions of StorNext can be used in the same SAN with Xsan controllers. ]]></content:encoded>
<pubDate>Wed, 25 Jun 2008 20:48:03 -0500</pubDate>
</item>
<item>
<title><![CDATA[About the Xsan 2.1 Update]]></title>
<description>Release date: Wed, 25 Jun 2008 03:40:17 -0500</description>
<link>http://support.apple.com/kb/HT1282</link>
<content:encoded><![CDATA[This article describes the Xsan 2.1 Update. This update is available via both Apple Downloads and Software Update.
Important: Read before installing

    Xsan 2.0 and Mac OS X 10.5 or Mac OS X Server 10.5, or later, is required in order to install Xsan 2.1. Mac OS X 10.5.3 or Mac OS X Server 10.5.3 or later is recommended for this update.
    If you are setting up a new Xsan deployment, please see this article for the proper installation order.
    Be sure that all Metadata Controllers (MDCs) are updated before you make ]]></content:encoded>
<pubDate>Wed, 25 Jun 2008 03:40:17 -0500</pubDate>
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<item>
<title><![CDATA[Xsan Admin may not appear to work immediately following Xsan 2 upgrade]]></title>
<description>Release date: Tue, 17 Jun 2008 01:51:40 -0500</description>
<link>http://support.apple.com/kb/TS1708</link>
<content:encoded><![CDATA[Immediately following an upgrade from Xsan 1 to Xsan 2, Xsan Admin may not appear to function properly. Functionality may be absent and statistics may be unavailable.
During this procedure, which may take hours or, in extreme cases, days to complete, the Xsan Volume cannot be mounted by Xsan clients. ]]></content:encoded>
<pubDate>Tue, 17 Jun 2008 01:51:40 -0500</pubDate>
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<item>
<title><![CDATA[Xsan 2.1: &quot;Not enough free space&quot; alert when copying data to new Xsan volume]]></title>
<description>Release date: Tue, 17 Jun 2008 01:48:38 -0500</description>
<link>http://support.apple.com/kb/TS1710</link>
<content:encoded><![CDATA[When trying to copy data to Xsan volumes that were created under Xsan 2.1, you may receive this alert message&quot;
&quot;The item 'Your File Name' cannot be copied because there is not enough free space.&quot; ]]></content:encoded>
<pubDate>Tue, 17 Jun 2008 01:48:38 -0500</pubDate>
</item>
<item>
<title><![CDATA[Xsan quotas may behave unexpectedly]]></title>
<description>Release date: Fri, 13 Jun 2008 20:33:24 -0500</description>
<link>http://support.apple.com/kb/TS1704</link>
<content:encoded><![CDATA[Xsan hard quotas may behave unexpectedly with large file transfers.
If you're trying to copy a large amount of data, the process may stop within a few megabytes of your hard quota due to the file system allocation strategy&mdash;even if those last few megabytes are available. Subsequent, smaller copies and file creations will be permitted as long as they don't exceed your hard quota. ]]></content:encoded>
<pubDate>Fri, 13 Jun 2008 20:33:24 -0500</pubDate>
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<item>
<title><![CDATA[Xserve RAID 1.5 and later: Configuring for optimal performance]]></title>
<description>Release date: Fri, 16 May 2008 17:52:27 -0500</description>
<link>http://support.apple.com/kb/HT1765</link>
<content:encoded><![CDATA[The Apple Xserve RAID 1.5 Update has features that allow you to choose between increasing your Xserve RAID&rsquo;s stability versus increasing the Xserve RAID's performance. Depending on how you intend to use your Xserve RAID, you will want to choose the options that correspond to increased stability or increased performance.

To take advantage of these new options, you will need to use RAID Admin 1.5 in conjunction with RAID Firmware version firmware-1.5-1.50.xfb. ]]></content:encoded>
<pubDate>Fri, 16 May 2008 17:52:27 -0500</pubDate>
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<item>
<title><![CDATA[Promise VTrak: RAID Controllers and SAS-connected Expansion Chassis - Direct Attached configuration script]]></title>
<description>Release date: Wed, 14 May 2008 19:08:25 -0500</description>
<link>http://support.apple.com/kb/HT1165</link>
<content:encoded><![CDATA[This article contains a script used to configure Promise RAID Controllers and SAS-connected Expansion Chassis for Direct Attached Storage.
To create the configuration script, copy the text below beginning with the line &quot;#Begin Copy&quot; to the line &quot;#End Copy&quot; and paste the text into TextEdit, using&nbsp;these guidelines.
Once you've created the script, follow the guidelines&nbsp;in this article&nbsp;to import the configuration script. ]]></content:encoded>
<pubDate>Wed, 14 May 2008 19:08:25 -0500</pubDate>
</item>
<item>
<title><![CDATA[Promise VTrak: RAID Controllers - Direct Attached configuration script]]></title>
<description>Release date: Wed, 14 May 2008 19:06:48 -0500</description>
<link>http://support.apple.com/kb/HT1164</link>
<content:encoded><![CDATA[&nbsp;
This article contains a script used to configure Promise RAID Controllers for Direct Attached Storage. 
To create the configuration script, copy the text below beginning with the line &quot;#Begin Copy&quot; to the line &quot;#End Copy&quot; and paste the text into TextEdit, using&nbsp;these guidelines.
Once you've created the script, follow the guidelines&nbsp;in this article&nbsp;to import the configuration script. ]]></content:encoded>
<pubDate>Wed, 14 May 2008 19:06:48 -0500</pubDate>
</item>
<item>
<title><![CDATA[Xsan: Compatibility of Xsan versions with Mac OS X versions]]></title>
<description>Release date: Tue, 13 May 2008 17:08:43 -0500</description>
<link>http://support.apple.com/kb/HT1862</link>
<content:encoded><![CDATA[This article contains a list of which Xsan versions are compatible with which versions of Mac OS X client and server; the matrix shows required versions of Xsan and Mac OS for when you want to upgrade your Xsan version.
 
Note: Xsan and Mac OS X versions running on MDCs must always be the same or later versions than those which are running on the Xsan clients (for example, clients running Xsan 1.4.2 on Mac OS X 10.4.11 means MDCs must be running Xsan 1.4.2 or later, and Mac OS X 10.4.11 or later). ]]></content:encoded>
<pubDate>Tue, 13 May 2008 17:08:43 -0500</pubDate>
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