On 05/20/2015 10:48 AM, Bryn Hughes wrote: > On 2015-05-19 10:43 AM, Dimitri Maziuk wrote: >> On 05/19/2015 11:42 AM, Bryn Hughes wrote:
>>> drive - most consumer hard drives top out at about 120MB/sec for >>> sequential reads and much less than that for random I/O >> Wow these seagate nas drives must be magic >> ... I get consistent 340MB/s sustained writes > You realize that using a RAIDZ with LZ4 compression is going to give far > better sequential performance ... Anyone knows where I can download sarcasm serif font for my thunderbird? > You can't run both a restore and a backup to a tape device at the same > time. Tape doesn't work like that. Then why TF are you quoting lto sustained write to hdd random i/o? "Disk subsystem can't keep up with modern tape" in the same way apples can't keep up with oranges. Compare optimized sustained writes to optimized sustained writes or random seek time to random seek time or stop spreading fud. /plonk -- Dimitri Maziuk Programmer/sysadmin BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu
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