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Re: Fastest dump device

On Mon, 11 Jan 2010, Edgar Fuß wrote:

BTW, I have a machine with 6GB, and although it does take a long
time to dump, it is well under 20 minutes.  (Of course, then
savecore runs at reboot and makes another copy of those 6GB...).

What type of device are you dumping on, then.

My 8GB machine...  Note that this is a SATA-1 drive (150MB/sec)

{101} dmesg | grep "memory ="
total memory = 8190 MB
avail memory = 7932 MB
{102} dmesg | grep wd0
wd0 at atabus0 drive 0: <Maxtor 6L300S0>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 279 GB, 581463 cyl, 16 head, 63 sec, 512 bytes/sect x 586114704 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
wd0(viaide0:0:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
boot device: wd0
root on wd0a dumps on wd0b

The savecore during boot isn't a problem. fsck and quotacheck both take much longer.

HeHeHe - I don't run quotas, and except for my smallish root partition I have WAPBL enabled everywhere to avoid the fsck time.

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