SkyCache, Inc., conquering the world wide wait.

SKYCACHE RELEASE 1.0 CONFIGURATION SPECIFICATIONS

Configuring SkyCache with Network Appliance

Compatible Versions: NetCache Software versions 3.1 and up, NetCache Appliances C230, C630
Recommended Version: NetCache Software versions 3.1.2 and up, NetCache Appliances with software. Release 3.3R2 and up.

Hardware Notes

The NetCache Software currently supports the following platforms:

Solaris 2.5

Digital Unix 3.5 and 4.0/4.0d (DEC Alpha)

Windows NT 4.0 with Service Pack 2

As with other software cache solutions, we recommend at least 256MB RAM and 16GB of disk.

Peering with SkyCache CA

To peer the SkyCache CA with a NetApp cache, you will need to edit settings within the 'Hierarchy and Cluster' settings page in the web management interface. To access this page, choose 'Configure NetCache' from the NetCache web management home page, and then choose 'Configure Advanced Settings'.

The SkyCache CA listens to port 3134 for HTTP requests, and 3132 for ICP requests.

From the 'Hierarchy and Cluster' page, add the SkyCache CA as a neighbor, as per:

hostname

For example:

company.downlink.skycache.com neighbor 3134 3132

From the 'Hierarchy and Cluster' page, ensure that the ICP query timeout is set to 2 seconds.

Notes

To verify that you are receiving objects properly from the SkyCache feed, look in the HTTP logs and verify that objects which are requested from the SkyCache CA are being retrieved with a retrieval method of NEIGHBOR_HIT. If objects are being retrieved directly and not via the SkyCache CA, you will want to make sure your peering with the SkyCache CA is setup properly.

Statistics about hit rates and performance within the web management interface will be tainted by the SkyCache feed, due to the method involved in getting objects into the cache. Counters for hit rate percentages in particular will appear much lower than their actual value. To get accurate numbers for cache performance, logs will need to be pulled from the server and post-processed with connections from the SkyCache CA removed.

NetCache Lite is not supported, as it will not allow more than 15000 URLs/hour.

Additional Resources

NetApp web site: http://www.netapp.com

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