| ID | | Article Title | Post Date |
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91 | 
| Installation of the Sonnet (ATTO OEM) RAID card in an 8-core Mac Pro with a Fusion D800RAID, R800RAID, or D400RAID storage system. | May-12-09 |
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202 |
| Under Mac OS X 10.5.6, the PCI Express Expansion Slot Utility (early Mac Pro) always reports 8x, 1x, 1x, 16x no matter how its set. | May-06-09 |
|
301 |
| Formatting a drive array greater than 16TB with APT (Apple Partition Table) fails in a Macintosh. | Jun-16-09 |
|
302 |
| I connected two Fusion DX800 (RX1600) RAIDs to the same controller, but only one show up to the ATTO configuration tool and the OS. | May-20-09 |
|
387 |
| How do I replace a failed drive under warranty if I'm in a sensitive/classified environment and can't send the old one back? | Mar-23-10 |
|
445 |
| What is the default drive timeout in Fusion RAID systems? Should I change it? | Mar-24-10 |
|
450 | 
| My storage shows 10% more capacity under OS X 10.6 than under OS X 10.5. Why? | Mar-24-10 |
| With Snow Leopard (10.6), Apple adopted the standard usage of terabyte (TB) which equals 1,000,000,000,000 bytes = 10-to-the-12th bytes. Hard drive manufacturers have always specified drive capacity with standard usage which will now match what Mac OS X reports.
WIth Leopard (10.5) and previous versions of Mac OS X, Apple used the binary interpretation of terabyte, (technically a tebibyte) = 1,099,511,627,776 bytes = 2-to-the-40th bytes. Windows also uses binary interpretation.
Under Snow Leopard, drive capacity will be shown per drive specifications. For example, under OS X 10.6, a 1TB drive will appear as a 1000 GB capacity drive (but under OS X 10.5 as a 909 GB capacity drive). For additional information see support.apple.com/kb/TS2419.
What does this mean in real terms? Do I get an immediate increase in storage space?
Formatting or actual capacity does not change at all, only the reported capacity because of the change from base-2 to base-10.
Should I reformat the drives before attempting to plug in a previously 10.5 formatted unit into a 10.6 machine or vice versa?
Reformatting is not necessary at all.
What happens if I plug a 10.6 formatted unit into a 10.5 machine or vice versa?
The volume is seen normally. It is completely compatible and can be transparently moved back and forth. |
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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 |
|
955 |
| Can I use Seagate Iron Wolf drives; or Hitchai and WD drives 8TB and larger? | May-31-18 |
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