North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Scalable Mail solution with NAS
> > > >/export/mailboxes/j/o/h/n/johndoe.mbox In the past I've actually found that reversing the letters gives much better randomosity around the directory structure so, [email protected] would end up in e/o/d/n/johndoe and you don't take much of a hit for this. > > very costly, though, because of all the recursive directories. Also, you're > > going to end up with some directories very imbalanced, since there are more > > frequently occurring names. > It also makes backups a nightmare. In that case, you'll have to shutdown > the entire mail system before you can backup or you'll have a database > image which won't represent the actual data you have on your NAS. In a high performance/availability system typical tape/spool based backups are problematic - with netapp you have a number of options to handle this [snap mirror etc]. It really depends on your turn over of data which for mail is usually pretty high. [oh and IBM disks tend to make a huge difference :-)]. Ofcourse spool type backups are fine for the OS and configurations. Regards, Neil.
|