Sorry for the GDrive request, I meant to click on the dismiss button.
That said, the boot time metrics are extremely interesting: I suppose the longer time is related to the qemu-img convert step (which is somewhat unreliable on GPFS) when booting from nova ephemeral disks.
Out of curiosity, have you ever observed a large disparity between sequential I/O and (small) random I/O on GPFS-backed virtual disks?
Sorry for the GDrive request, I meant to click on the dismiss button.
ReplyDeleteThat said, the boot time metrics are extremely interesting: I suppose the longer time is related to the qemu-img convert step (which is somewhat unreliable on GPFS) when booting from nova ephemeral disks.
Out of curiosity, have you ever observed a large disparity between sequential I/O and (small) random I/O on GPFS-backed virtual disks?
Thank you for the good article
ReplyDelete