| ID | | Article Title | Post Date |
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445 | 
| What is the default drive timeout in Fusion RAID systems? Should I change it? | Mar-24-10 |
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737 | 
| I daisy-chained two DX800s and my drives don't show up. | Mar-08-18 |
| Sonnet DX800 had 3Gb SAS expanders (Model Number SON005 and previous) and some had 6Gb SAS expanders (Model Number SON0011 and later).
You may mix models if you connect one to each SAS controller port. You may daisy-chain units togerther of the same model in any order, but if you daisy-chain mixed models SON005 and SON0011, then model(s) SON005 must come earlier and model(s) SON0011 must come later in the daisy-chain.
The performance does not change much with the faster SAS expanders when you use only 8 drives, because the 8 lanes on the controller card connect directly to 8 drives in one chassis without SAS switching. However, the performance is measurable better with 6Gb over 3Gb SAS expanders when you connect two 6Gb units concurrently or daisy-chain 6Gb chassis. In order to raffect this performance increase, Sonnet phased in 6Gb internal SAS expanders. A consequence of this performance bump is that a 3Gb expander will not work behind the 6Gb expander in a chain, only the in front of it. A mixed configuration works as well as two 3Gb SAS expander chassis together. Unfortunately, the SAS expanders in the SON005 units cannot be upgraded because the backplane going to SON0011 changed also. The good news is that every valid configuration will generally run faster, and in no case slower than before. |
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775 |
| Does the ATTO R380 Support OS X 10.9 (Mavericks)? | Oct-21-13 |
| Official ATTO support ends with OS X 10.8.5.
With OS X 10.9+, you will no longer be able to boot from a drive or array connected to an ATTO R380, and you will no longer be able to create new RAID groups. You can install current drivers for this card under Mavericks, but there will be no support from ATTO. Furthermore, Mavericks OS will complain at every boot about using unsigned drivers.
To transition to Mavericks, customers with an early Fusion DX800RAID storage unit equipped with an R380 RAID controller can purchase from Sonnet an R680 RAID controller with an included cooling upgrade kit.
All Fusion DX1600RAID units were equipped with an R680 RAID controller, which has complete Mavericks support.
The Fusion D800RAID and R800RAID storage units are not compatible with the ATTO R680 card. To transition to Mavericks, customers with a Fusion D800RAID or R800RAID must upgrade to a DX800 storage unit which includes an R680 controller. The drives can be moved with the RAID array intact. If you would like to make this upgrade, contact Sonnet sales to inquire about purchasing a DX800 without drives. |
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