Shaun Cammack
Forum Replies Created
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The order you select your layers affects how they paste. If you click on the bottom layer, hold shift, then click on the top layer and then copy, the paste order will be different than when you click on the top layer, hold shift, and click on the bottom layer and then copy. Selecting bottom to top will reverse layer order. Select from top to bottom will not.
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Apologies, Doug, no, nothing has changed. Even moving to the 5,1 Mac Pro and putting the H1280 in slot 2, which is an x16 slot, I am still only getting 2.5GT/s at x8…which should still be fast enough to push enough data to the tape drive.
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Yes, it is a PCIe 3 card, but even with the slot it is in (which, I’ll admit, is a PCIe 1.1 slot at x4), it should still be able to push 1GB/s of data according to PCIe spec, right? I’m only getting 150MB/s to tape according to BRU. Unless the H1280 is doing something weird and falling back even slower, it seems odd that I wouldn’t be getting faster transfers from the card.
And my server is accessing itself using localhost.
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Hi Tim,
Rookie mistake…late night post. We are using a Mac Pro 3,1 with H1280 in one of the slower slots. We are using BRU 2.0.6 server and backing up to an Overland Storage Neos T24 LTO-8 (currently using LTO-7 tapes).Our storage system can throughput over 1000MB/s and we are backing up mixed design and media files from a few MB to 10GB or more.
I know there is a TLR issue with the R680 card, but I guess I incorrectly assumed that the H1280 wouldn’t suffer from this?
I currently have the H1280 maximum I/O transfer size set to 4MB. In BRU, I have the LTO-8 drive block size set to 512K and the write cache at 1024MB.
We will be moving one of our Mac Pro 5,1s into the server role pretty soon…faster procs and triple the RAM, plus faster PCIe on slots 3 & 4.
Ultimately, though, is the TLR issue going to be a dealbreaker with ATTO and the Mac? If so, is there a recommended card I should purchase?
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Hi Tim,
Wondering if you could shed light on optimal config for buffer/blocksize for LTO-8? I’m using an ATTO H1280.Many thanks,
Shaun -
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