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ExpressSAS RAID adapters tend to run hot in a Mac Pro

Problems accessing tape drives attached to a UL5D in a Intel-based MAC-Pro or X-Serve

I can only see 2 TB of my >2 TB Array under OS X

Java Support Resources
ExpressSAS RAID adapters tend to run hot in a Mac Pro

  • Previously, we had been instructing customers to install fan control software to speed up the cooling fans to provide additional cooling. Now, the version 1.20 driver includes a fan speed control daemon. This eliminates the need for a separate program to control fan speed. We have recently updated our fan speed control daemon to support the new 2010 Mac Pro (MacPro5,1) platform. It is bundled in the current driver release for 3Gb and 6Gb ExpressSAS RAID adapters.

Problems accessing tape drives attached to a UL5D in a Intel-based Mac Pro or X-Serve

  • Since the release of OS 10.4.10, there have been a number of reported problems accessing tape drives with EMC Retrospect and other backup programs. These usually materialize as system freezes or backups hang. This has been reported mostly with LTO3 and Sony AIT-4 or AIT-5 tape drives, but may happen with other types also. ATTO has implemented a work around for this in the OS X SCSI driver version 4.20 or greater. This driver is available on the ATTO downloads page.
I can only see 2 TB of my >2 TB Array under OS X  

  • The ATTO Celerity, ExpressPCI, ExpressSAS adapters and OS X all support units larger than 2 TB. The issue is typically caused by the Returned Inquiry Data upon boot. Apple looks at byte 2 of the returned Inquiry Data (version field) in order to determine if a device supports 16 byte CDB's. In order to support a volume larger than 2 TB, 16 byte CDB's must be supported. If Apple does not see that a device supports SPC-3 (05h in byte 2), they will not send 16 byte read capacities or 16 byte CDB's at all.


    Unfortunately there is nothing our host adapter can do to resolve your issue.

  

Java Support Resources

 

  • Java is a computing platform that enables applications to run in almost any computer or device. Available for Windows, Macintosh, Linux and UNIX operating systems, the Java Runtime Environment (JRE) allows you to take advantage of the benefits of Java-enabled applications. Several ATTO applications are Java-enabled. As such, the JRE must be installed on your computer for these applications to run. The JRE is available for download at the Java technology web site (www.java.com). This site also provides a wealth of technical support resources to help you, if needed.