Hi, i wrote: > > Well, i seem to have more drives attached than you. :))
Listas Canal wrote: > I have 2 BD-RE and 1 DVD-RW, yes you have 1 more :)) But sr4 is drive number 5. And i have a sr5. 0 -dev '/dev/sr0' rwrw-- : 'HL-DT-ST' 'BDDVDRW GGC-H20L' 1 -dev '/dev/sr1' rwrw-- : 'HL-DT-ST' 'DVDRAM GH24NSC0' 2 -dev '/dev/sr2' rwrw-- : 'HL-DT-ST' 'BD-RE GGW-H20L' 3 -dev '/dev/sr3' rwrw-- : 'Optiarc ' 'BD RW BD-5300S' 4 -dev '/dev/sr4' rwrw-- : 'ASUS ' 'BW-16D1HT' 5 -dev '/dev/sr5' rwrw-- : 'HL-DT-ST' 'BD-RE BH16NS40' > > Media summary: 610 sessions, 9060897 data blocks, 17.3g data, 5894m free > Did you recycle the one on the shelf when another 2 or more came? No. I still have them since i began using that scheme in 2010. Above backup has compression by zisofs and thus produces quite small sessions. In the beginning i used BD-R for it, but even the nicest burners refuse to burn more than about 300 session to them. With BD-RE there is no need for the drive to maintain an own table-of-content. It sees only one big track. So the chain of ISO 9660 sessions can get as long as the medium has capacity. > I hope BD-RE also has the > same durability or more for confidential data that grows from year to year. I recently performed BD-R tests by copying BD-REs of 2010, made by the GGW-H20L. (That old burner does not accept any contemporary BD-R for burning but still does bulk BD-RE backups for me with its sensational 2.3x speed.) Half of the copied BD-REs later turned out to be unreliable for writing. So my hope for a big recycling outcome was disappointed. But before that they all were readable and passed their MD5 content checks. On the other hand i have BD-RE from 2008 which get overwritten once every half year. > > (You could insert a command spy in method Scsi_Command.transport() > > of the file transport.hxx. The diff between original and spying version > > of transport.hxx has 179 lines. Ask me if you want to have it.) > Yes please, if you can share it as an attachment. I'm not sure whether this list takes attachments. So i will try by a separate mail. Have a nice day :) Thomas
