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LTO2 vs 9940 Which way to go??
3590E's were not a bad drive...much better than the B's!! The higher undetected error rate...does this translate into real world problems???.... Apart from the error rate, the drive longevity seems pretty close. Has anyone actually seen LTO's pushed hard and started seeing anything? -
LTO2 vs 9940 Which way to go??
LTO1's have a 100,000 load/unload duty cycle which is the same as the 9940's. Guessing LTO2 is the same or better. Power on hours look similiar enough not to be significant. Head life of 60,000 hours @ 24 hours per day = 2000'ish days = 6 years....plenty. I'm not seeing the significant... -
LTO2 vs 9940 Which way to go??
How big is the duty cycle difference??? How much is too much? 20 mounts per day? 40 mounts per day? 100 mounts per day? What starts happening? Tape I/O errors? Machine checks? I need to be able to explain what the difference is and what happens when the drives are pushed too much. -
LTO2 vs 9940 Which way to go??
TSM server performance is being fixed at the moment with a new box so that should be OK. Data to back up is about 8Tb's. If we go LTO2, we are possibly looking at 4-6 LTO2's in a new L700e or a second hand L700. Will also see what else is available, but the L700/e seems best fit. Not sure what... -
LTO2 vs 9940 Which way to go??
OK...No high speed locate and is relative to file position on tape. 1/ I could possibly keep a few 9840's for daytime write processing and then copy them to LTO's when full to overcome the speed delay...... 2/ I could use a scratch pool of LTO's for daytime output and merge them when it's... -
LTO2 vs 9940 Which way to go??
I got to thinking about the 3 minute load time as most vendors talk about sub 1 minute. STK link below shows IBM and HP drives sub 1 minute. What causes the extra 2 minute delay? http://www.storagetek.com/products/product_page41.html#specifications -
LTO2 vs 9940 Which way to go??
Drives will be Fibre attached. No HSM activity, the closest being TSM(ADSM) migrations and SAP log archiving. Recalls(restores) are few and far between. Lots of TSM space reclamation and offsite copies for DRP are the main tape read applications. Writing is mainly backups from disk... -
LTO2 vs 9940 Which way to go??
Looking at moving up from 9840 20 Gig level technology to 200/300 gig tapes to backup AIX & NT and was looking for some views on the pro's/con's of LTO2 vs 9940. The management lean is towards LTO2 as it is cheaper and more "politically correct" at the moment. I came across the...
