Techie geeks... Fibre drives?

[Mattyboy]

How much better are fibre drives in a server than SCSI's?

[A Priest]

better for what?

if your on about high end SAN type solutions, in some cases you may have fibre channel from your header unit to your disk array, then your disks could be scsi or sata, meaning overhead translating FC instructions to scsi/sata & vice versa.

fibre channel and iscsi (not scsi) are merely ways of connecting your server to an external disk array unit. Inside your disk array unit will be either scsi or sata disks.

scsi has a distance of about 25m between disks and server units, fibre channel is something like 10km.

hope that helps, im no expert on this (yet) btw, but that all has to change if I cant get my lovely adult websites to help me quit the day job.

[dvtimes]

better for what?

if your on about high end SAN type solutions, in some cases you may have fibre channel from your header unit to your disk array, then your disks could be scsi or sata, meaning overhead translating FC instructions to scsi/sata & vice versa.

fibre channel and iscsi (not scsi) are merely ways of connecting your server to an external disk array unit. Inside your disk array unit will be either scsi or sata disks.

scsi has a distance of about 25m between disks and server units, fibre channel is something like 10km.

hope that helps, im no expert on this (yet) btw, but that all has to change if I cant get my lovely adult websites to help me quit the day job.

that sounds well cool.

i wish i understood any of it.

[A Priest]

that sounds well cool.

i wish i understood any of it.

lol, yeah but why? think about it - your job is taking photos of nekkid women all day, posting on forums and driving josephs technicolour dreamcar, where as mine is hanging around in ice cold nerd enclosures surrounded by people with dandruff and an indepth knowledge of porn sites as a consumer.

wanna swap? :fighting0045:

[Jase]

better for what?

if your on about high end SAN type solutions, in some cases you may have fibre channel from your header unit to your disk array, then your disks could be scsi or sata, meaning overhead translating FC instructions to scsi/sata & vice versa.

fibre channel and iscsi (not scsi) are merely ways of connecting your server to an external disk array unit. Inside your disk array unit will be either scsi or sata disks.

scsi has a distance of about 25m between disks and server units, fibre channel is something like 10km.

hope that helps, im no expert on this (yet) btw, but that all has to change if I cant get my lovely adult websites to help me quit the day job.


Not true - you can get actual fibre channel drives which is what is used it high end SAN and NAS arrays. Its only recently that PATA, SATA and now SCSI drives have been used.

FC drives are faster than SCSI etc but for most uses its not really noticeable - the other advantage they have is a much superior meantime between failure rate (i.e. they are more reliable).

If you were running a large transactional database like amazon for example the difference would be very noticeable but otherwise they dont justify the additional expense of the disk, HBA (controller card) and then the actual enclosure itself and other associated bits.

The distance comment is kinda right and kinda wrong - it depends on the type of FC connection (shortwave v longwave, copper v optical etc) and in some cases the distance can be in excess of 250km using things like DWDM but thats irrelevant and just me proving Im a nerd :P

[A Priest]

jase - your shitting me up, im supposed to know wtf im talking about on san's but i have no interest tbh.

any pointers towards sites where i might be able to learn a thing or two and not look like a retard in my new job? :(