PDU = power distribution units. they are generally controlled via a serial console or via inet/ip and allow the turning on/off of a port. intelligent PDUs and serial console terminals can also be replaced by compute nodes which have IPMI enabled motherboards. you might of seen IPMI styled devices on Sun workstations or Compaq servers which allow for bios and console access of a computer even when they are turned off. many motherboard manufactures, such as SuperMicro, are starting to support this.
i'm happy to hear you mentioning backups as many people ignore them. the type of backup solution you need is generally driven by the amount of data and your backup window. i wouldn't waste your time/resources by backing up compute nodes, only the cluster master and/or file server really needs to be backed up. in order to decrease a given backup window many people are starting to leverage disk based backups AND (not instead of) then write these backups to tape. LTO-styled tape drives (or libraries) are starting to become one of the more popular backup medias currently. -mike -- [EMAIL PROTECTED] cell: 516.410.4478 https://secure.hanulec.com EFnet irc && aol im: hanulec On Thu, 4 Dec 2003, Ross Boylan wrote: > On Wed, 2003-12-03 at 19:36, Michael Hanulec wrote: > ... > > Manageability of the system must be considered. If possible try to budget > > in a serial console terminal server and some intelligent PDUs as they will > > save you time and headache when things break. A nice server deployment > What are PDUs? > > Also, if folks have any advice on backup, we need to consider that too. > > > -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

