Ещё:% df -h
Filesystem Size Used Avail Capacity Mounted on
roxymedia/downloads 570G 570G 286M 100% /downloads
% dd if=/downloads/Пекло\ \(2007\).mkv of=/dev/null bs=1048576 count=1024
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 36.846162 secs (29141212 bytes/sec)
% dd if=/downloads/Пекло\ \(2007\).mkv of=/dev/null bs=1048576 count=1024
1024+0 records in
1024+0 records out
1073741824 bytes transferred in 0.605385 secs (1773650997 bytes/sec)
Прочитаем, что читали несколько минут назад:
% dd if=/downloads0/Уральские\ пельмени/25.\ Уральские\ пельмени.\ \ Зе\ BAD\ –\ Худшее\!\ \(2012.04.01\).avi of=/dev/null bs=1048576 count=1024
790+1 records in
790+1 records out
828631040 bytes transferred in 0.426347 secs (1943560073 bytes/sec)
Проверим скорость чтения данных в кэше:
% dd if=/downloads/Пекло\ \(2007\).mkv of=/dev/null bs=1048576 count=1024 1024+0 records in
1024+0 records out
1073741824 bytes transferred in 0.582971 secs (1841844768 bytes/sec)
% zpool status roxymedia
pool: roxymedia
state: ONLINE
scan: scrub repaired 0 in 34h15m with 0 errors on Thu Apr 12 21:50:51 2012
config:
NAME STATE READ WRITE CKSUM
roxymedia ONLINE 0 0 0
ada0p3 ONLINE 0 0 0
errors: No known data errors
% smartctl -a /dev/ada0
smartctl 5.43 2012-06-30 r3573 [FreeBSD 9.1-PRERELEASE amd64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Model Family: SAMSUNG SpinPoint M7E (AFT)
Device Model: SAMSUNG HM641JI
Serial Number: S23TJ9AZB04208
LU WWN Device Id: 5 0024e9 203cd8643
Firmware Version: 2AJ10001
User Capacity: 640 135 028 736 bytes [640 GB]
Sector Size: 512 bytes logical/physical
Device is: In smartctl database [for details use: -P show]
ATA Version is: 8
ATA Standard is: ATA-8-ACS revision 6
Local Time is: Sun Aug 26 15:00:07 2012 VOLT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
