Forward mode is 3x less stresfull for your target storage. On the other hand daily synthetic will consume lots of space with the same end result so it'd be better to use virtual full backup. in case you decide to switch to forever forward.Performance wise, is this the same as doing Incremental with Synthetic Full daily? Or is it better to do Incremental with Synthetic Full daily which would gain me the same end result and that is the last backup being a full backup which is then offloaded to tape?
Yes, forward incremental method is faster than reverse incremental.Would the backup to disk time decrease?
Have you tried running your jobs one by one instead of suimultaneous run? Any performance difference?both jobs combined is just under 10TB of data and the source is the bottleneck when writing to LTO7 which is capable of doing 300MB/s each (we have 2 drives and 2 jobs in parallel, this should get close to 600MB/s). I am finding that I am getting about 300MB/s combined writing to both tapes.
Have you tried to copy those two .vbk files somewhere, what was the performance? I'm asking because I suspect that parallel reading of two large files (lots of random reads) might be the reason why source is the bottleneck.My thought is, if HDTune is showing 743MB/s read avg
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