LSI SAS3801E 相关记要

Posted on (Updated by yaoge123

LSISAS3801E是LSI唯一一款带有外置SAS接口PCIe的半高SAS HBA卡。类似的LSISAS31601E是全高卡，Adaptec 1045只有一个SFF8088。

LSISAS3801E芯片是LSISAS1068E，至少从FreeBSD 6.4开始支持了。
LSISAS3801E的手册中只标明支持SATA 1.0a，但是LSISAS1068E的技术手册中说明支持SATA II（包括热插拔、NCQ等），一些OEM产品的手册也印证了。

VMware ESXi 的VLAN支持

Posted on (Updated by yaoge123

　　ESXi主机和交换机用trunk连接，在vSphere Client的主机网络配置中，虚拟机端口组的VLAN ID留空则虚拟机只可访问native VLAN (这里是VLAN 1)；如果填写了ID则虚拟机只可访问对应的VLAN；如果ID填写4095则透传trunk，由虚拟机OS来完成VLAN区分(如PROSet)。

以上配置在此环境下测试通过：服务器为IBM X3650，安装ESXi 4.0.0 193498，双网卡均直接连接到6506的WS-X6748-GE-TX，IOS版本：s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-VM), Version 12.2(33)SXI, RELEASE SOFTWARE (fc2)
所有和ESXi主机相连的端口配置如下：
interface GigabitEthernet4/1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk

FreeBSD下ZFS RaidZ硬盘替换扩容实践

Posted on by yaoge123

创建一个raidz1的ZFS pool
test# zpool create zfspool raidz da1 da2 da3
test# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
zfspool 23.9G 192K 23.9G 0% ONLINE –
test# zpool status
pool: zfspool
state: ONLINE
scrub: none requested
config:

NAME STATE READ WRITE CKSUM
zfspool ONLINE 0 0 0
raidz1 ONLINE 0 0 0
da1 ONLINE 0 0 0
da2 ONLINE 0 0 0
da3 ONLINE 0 0 0

errors: No known data errors

用更大的da4、da5、da6替换原来小的da1、da2、da3 Continue reading →

FreeBSD下ZFS mirror升降级、硬盘替换和在线/离线扩容实践

Posted on by yaoge123

创建一个非冗余的ZFS pool
test# zpool create zfspool da1
test# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
zfspool 7.94G 110K 7.94G 0% ONLINE –
test# zpool status
pool: zfspool
state: ONLINE
scrub: none requested
config:

NAME STATE READ WRITE CKSUM
zfspool ONLINE 0 0 0
da1 ONLINE 0 0 0

errors: No known data errors

增加一个盘，升级为双路mirror
test# zpool attach zfspool da1 da2
test# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
zfspool 7.94G 112K 7.94G 0% ONLINE –
test# zpool status
pool: zfspool
state: ONLINE
scrub: resilver completed with 0 errors on Tue Jul 21 21:24:27 2009
config:

NAME STATE READ WRITE CKSUM
zfspool ONLINE 0 0 0
mirror ONLINE 0 0 0
da1 ONLINE 0 0 0
da2 ONLINE 0 0 0

errors: No known data errors

如果想直接建立一个双路mirror的ZFS pool用
test# zpool create zfspool mirror da1 da2

再增加一个盘，升级为三路mirror Continue reading →

openSUSE 安装 VMware Tools 之前的准备

Posted on by yaoge123

openSUSE 11.2：
安装make, gcc, kernel-source
/usr/bin/vmware-config-tools.pl –clobber-kernel-modules=vmci –clobber-kernel-modules=vsock –clobber-kernel-modules=vmxnet3 –clobber-kernel-modules=pvscsi –clobber-kernel-modules=vmmemctl –clobber-kernel-modules=vmhgfs –clobber-kernel-modules=vmxnet –clobber-kernel-modules=vmblock

openSUSE 11.1：
删除/lib/modules/2.6.27.7-9-default/updates中的vmxnet.ko vmblock.ko vmmemctl.ko vmhgfs.ko vmci.ko vmsync.ko 这些文件
安装make, gcc, kernel-source

openSUSE 10.3：
安装less, psmisc, make, gcc, kernel-source

FreeBSD下PT client选择

Posted on (Updated by yaoge123

HDChina和HDBits上可用的client有Azureus、 BitTornado、 KTorrent、 rtorrent、 Transmission、 uTorrent。uTorrent需要Wine；Azureus(Vuze)和KTorrent需要X，因此都不考虑了。BitTornado 0.3.18 HDChina不认，Transmission 1.61 HDBits不认。rtorrent里凡是没有下载完成的任务，重启后都需要重新hash，Transmission则没有该问题，而且且速度比rtorrent要快。难道用uTorrent + samba？

FreeBSD使用VMware Tools无法关闭电源

Posted on (Updated by yaoge123

　　FreeBSD安装了VMware Tools以后，可以通过VI关闭客户机，但是系统停留在“The operating system has halted.Please press any key to reboot.”不能够自动关闭电源。解决方法为
ee /usr/local/etc/rc.d/vmware-tools.sh
　　查找vmware_start_guestd()可见
vmware_start_guestd() {
cd "$vmdb_answer_SBINDIR" && "$vmdb_answer_SBINDIR"/vmware-guestd \
--background "$GUESTD_PID_FILE"
}
　　在vmware-guestd命令下增加参数–halt-command “/sbin/shutdown -p now”，修改为
vmware_start_guestd() {
cd "$vmdb_answer_SBINDIR" && "$vmdb_answer_SBINDIR"/vmware-guestd \
--background "$GUESTD_PID_FILE" --halt-command "/sbin/shutdown -p now"
}
　　保存退出。执行 /usr/local/etc/rc.d/vmware-tools.sh restart，重启vmware tools即可。

FreeBSD下ZFS在线替换硬盘扩容实践

Posted on by yaoge123

替换前
test# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
zfspool 9.94G 1.96G 7.98G 19% ONLINE –

用da2替换da1，都是/dev/下的设备
test# zpool replace zfspool da1 da2

开始替换了
test# zpool status
pool: zfspool
state: ONLINE
status: One or more devices is currently being resilvered. The pool will
continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
scrub: resilver in progress, 15.24% done, 0h4m to go
config:

NAME STATE READ WRITE CKSUM
zfspool ONLINE 0 0 0
replacing ONLINE 0 0 0
da1 ONLINE 0 0 0
da2 ONLINE 0 0 0

errors: No known data errors

替换完成了
test# zpool status
pool: zfspool
state: ONLINE
scrub: resilver completed with 0 errors on Sat May 9 16:49:35 2009
config:

NAME STATE READ WRITE CKSUM
zfspool ONLINE 0 0 0
da2 ONLINE 0 0 0

errors: No known data errors

容量增加了
test# zpool list
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
zfspool 17.9G 1.96G 16.0G 10% ONLINE –

整个过程中应用没有中断

使用PF实现基于来源的策略路由

Posted on (Updated by yaoge123

　　FreeBSD做服务器，要实现从哪个网卡进来的连接请求，返回时还从哪个网卡出去。这样可以让客户端自己选择线路，无需收集路由表。

ee /etc/rc.conf
pf_enable="YES"
pf_rules="/etc/pf.conf"
//启用PF
defaultrouter="192.168.1.1"
//这个是本机自己发起连接的默认路由

ee /etc/pf.conf

if_cernet="em0"
if_ct="em1"
gw_cernet="192.168.1.1"
gw_ct="192.168.0.1"
block all
pass quick on lo0 all
pass in quick on $if_cernet reply-to ( $if_cernet $gw_cernet ) proto {tcp,udp,icmp} to any keep state
pass in quick on $if_ct reply-to ( $if_ct $gw_ct ) proto {tcp,udp,icmp} to any keep state
pass out keep state