2015年5月8日

brocade ntp time

Synchronizing local time using NTP

Perform the following steps to synchronize the local time using NTP.
  1. Log into the switch using the default password, which is password.
  2. Enter the tsClockServer command:
    switch:admin> tsclockserver  ""
    
    where ntp1 is the IP address or DNS name of the first NTP server, which the switch must be able to access. The second ntp2 is the second NTP server and is optional. The operand "" is optional; by default, this value is LOCL, which uses the local clock of the principal or primary switch as the clock server.
    switch:admin> tsclockserver
    LOCL
    switch:admin> tsclockserver "132.163.135.131"
     
    switch:admin> tsclockserver
    132.163.135.131
    switch:admin>
    The following example shows how to set up more than one NTP server using a DNS name:
    switch:admin> tsclockserver
     "10.32.170.1;10.32.170.2;ntp.localdomain.net"
    Updating Clock Server configuration...done.
    Updated with the NTP servers
    Changes to the clock server value on the principal or primary FCS switch are propagated to all switches in the fabric.

2015年4月28日

fio效能測試手記

FIO安裝測試範例
[root@supermic2 ~]#
[root@supermic2 ~]# mkdir fio
[root@supermic2 ~]# cd fio/
[root@supermic2 fio]# wget ftp://195.220.108.108/linux/dag/redhat/el7/en/x86_64/dag/RPMS/fio-2.1.10-1.el7.rf.x86_64.rpm
[root@supermic2 fio]# rpm -ivh fio-2.1.10-1.el7.rf.x86_64.rpm
warning: fio-2.1.10-1.el7.rf.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 6b8d79e6: NOKEY
error: Failed dependencies:
        libc.so.6(GLIBC_2.14)(64bit) is needed by fio-2.1.10-1.el7.rf.x86_64
        libm.so.6(GLIBC_2.15)(64bit) is needed by fio-2.1.10-1.el7.rf.x86_64
請勿跟我一樣犯傻裝成RHEL7
[root@supermic2 fio]# wget ftp://195.220.108.108/linux/dag/redhat/el6/en/x86_64/dag/RPMS/fio-2.1.10-1.el6.rf.x86_64.rpm
[root@supermic2 fio]# rpm -ivh fio-2.1.10-1.el6.rf.x86_64.rpm
warning: fio-2.1.10-1.el6.rf.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 6b8d79e6: NOKEY
error: Failed dependencies:
        libibverbs.so.1()(64bit) is needed by fio-2.1.10-1.el6.rf.x86_64
[root@supermic2 fio]# yum install libibverbs
[root@supermic2 fio]# rpm -ivh fio-2.1.10-1.el6.rf.x86_64.rpm

powerpath
[root@supermic2 ~]# wget https://www.dropbox.com/s/na23jm0w4s6hikx/EMCPower.LINUX-6.0.0.00.00-158.RHEL6.x86_64.rpm
[root@supermic2 ~]# rpm -ivh EMCPower.LINUX-6.0.0.00.00-158.RHEL6.x86_64.rpm
[root@supermic2 ~]# emcpreg -i
Reboot
[root@supermic2 ~]# powermt display dev=all
Pseudo name=emcpowera
VNX ID=CETV2150900078 [SG_Test]
Logical device ID=60060160E1603C00BC6C544A52EDE411 [SPMIC4-2_1TB_IOPS_Test]
state=alive; policy=CLAROpt; queued-IOs=0
Owner: default=SP B, current=SP B       Array failover mode: 4
==============================================================================
--------------- Host ---------------   - Stor -  -- I/O Path --   -- Stats ---
###  HW Path               I/O Paths    Interf.  Mode     State   Q-IOs Errors
==============================================================================
   1 bfa                    sda        SP A0     active   alive      0      0
   1 bfa                    sdb        SP B0     active   alive      0      0

[root@supermic2 ~]# cd /dev/
[root@supermic2 dev]# mkfs -t ext4 /dev/emcpowera
[root@supermic2 dev]# mkdir /emcdisk
[root@supermic2 dev]# mount /dev/emcpowera /emcdisk/
[root@supermic2 dev]# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sdc3       450G  2.1G  426G   1% /
tmpfs           3.9G     0  3.9G   0% /dev/shm
/dev/sdc1       477M   63M  389M  14% /boot
/dev/emcpowera 1008G   72M  957G   1% /emcdisk
測試FIO效能
[root@supermic2 emcdisk]# fio -filename=/dev/emcpowera -direct=1 -iodepth 1 -thread -rw=randrw -rwmixread=70 -ioengine=psync -bs=16k -size=64G -numjobs=30 -runtime=100 -group_reporting -name=mytest
mytest: (g=0): rw=randrw, bs=16K-16K/16K-16K/16K-16K, ioengine=psync, iodepth=1
...
fio-2.1.10
Starting 30 threads
Jobs: 30 (f=30): [mmmmmmmmmmmmmmmmmmmmmmmmmmmmmm] [100.0% done] [116.6MB/52576KB/0KB /s] [7460/3286/0 iops] [eta 00m:00s]
mytest: (groupid=0, jobs=30): err= 0: pid=8028: Tue Apr 28 11:47:30 2015
  read : io=16586MB, bw=169621KB/s, iops=10601, runt=100130msec
    clat (usec): min=140, max=367472, avg=1137.68, stdev=2374.99
     lat (usec): min=140, max=367472, avg=1137.94, stdev=2374.99
    clat percentiles (usec):
     |  1.00th=[  374],  5.00th=[  470], 10.00th=[  524], 20.00th=[  604],
     | 30.00th=[  692], 40.00th=[  772], 50.00th=[  852], 60.00th=[  948],
     | 70.00th=[ 1048], 80.00th=[ 1176], 90.00th=[ 1368], 95.00th=[ 1576],
     | 99.00th=[ 9920], 99.50th=[13632], 99.90th=[27008], 99.95th=[34560],
     | 99.99th=[62720]
    bw (KB  /s): min=  504, max= 8032, per=3.34%, avg=5673.48, stdev=882.68
  write: io=7098.6MB, bw=72595KB/s, iops=4537, runt=100130msec
    clat (usec): min=414, max=325774, avg=3931.50, stdev=4172.32
     lat (usec): min=415, max=325775, avg=3932.92, stdev=4172.32
    clat percentiles (usec):
     |  1.00th=[ 1064],  5.00th=[ 1592], 10.00th=[ 2008], 20.00th=[ 2512],
     | 30.00th=[ 2896], 40.00th=[ 3216], 50.00th=[ 3568], 60.00th=[ 3920],
     | 70.00th=[ 4384], 80.00th=[ 4960], 90.00th=[ 5792], 95.00th=[ 6560],
     | 99.00th=[10048], 99.50th=[14144], 99.90th=[48384], 99.95th=[79360],
     | 99.99th=[168960]
    bw (KB  /s): min=   94, max= 3424, per=3.34%, avg=2427.76, stdev=361.93
    lat (usec) : 250=0.07%, 500=5.30%, 750=20.54%, 1000=20.27%
    lat (msec) : 2=24.73%, 4=16.11%, 10=11.99%, 20=0.78%, 50=0.19%
    lat (msec) : 100=0.03%, 250=0.01%, 500=0.01%
  cpu          : usr=0.28%, sys=1.53%, ctx=1533832, majf=0, minf=6
  IO depths    : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
     submit    : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     complete  : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
     issued    : total=r=1061507/w=454307/d=0, short=r=0/w=0/d=0
     latency   : target=0, window=0, percentile=100.00%, depth=1

Run status group 0 (all jobs):
   READ: io=16586MB, aggrb=169620KB/s, minb=169620KB/s, maxb=169620KB/s, mint=100130msec, maxt=100130msec
  WRITE: io=7098.6MB, aggrb=72594KB/s, minb=72594KB/s, maxb=72594KB/s, mint=100130msec, maxt=100130msec

Disk stats (read/write):
  emcpowera: ios=1060910/454033, merge=0/2, ticks=1184825/1769804, in_queue=2952885, util=99.95%

[root@supermic2 emcdisk]#
================================
參考網誌
http://www.cnblogs.com/Skyar/p/3488100.html