On 4/14/05, Mrohs, Ray <[EMAIL PROTECTED]> wrote: > You can split up the DASD into equally sized minidisks and if you stripe the > LV, > then Linux will initiate multiple I/Os across howewever many physical volumes > (minidisks) you have in the group. Depending on how many paths there are to > the > mod-27 device, there may be a performance benefit(?).
All those mini disks will be on the same real device for z/VM, so the I/O will queue in CP. If the space in your disk subsystem was configured in a few small ones, you could have an I/O active to each of those in parallel (provided you have enough paths to the subsystem). This is why many of us avoid large disks when possible. Rob PS The exception to this is when the data is in z/VM Minidisk Cache. Linux could have a read satisfied from one minidisk while a write is in progress on another minidisk on the same real device. -- Rob van der Heij rvdheij @ gmail.com ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
