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CryptoJones's questions

Martin Hope
CryptoJones
Asked: 2014-12-04 08:12:07 +0800 CST
  • 2

在 Citrix XenServer 中...我想要一个不依赖于物理 NIC 的内部网络，只有 HyperVisor 和虚拟机才能看到。我相信我想实现一个“单服务器专用网络”。

虚拟机如何与 Hyper-Visor 通信？如果我想从其中一个 VM 管理 Hyper-Visor，我该如何访问它？

我知道另一种选择是将网络与物理 NIC 关联，但我不希望 LAN 能够访问该网络。

xenserver
Martin Hope
CryptoJones
Asked: 2012-12-07 08:45:20 +0800 CST
  • 0

我已经使用 Piranha 为 httpd 设置故障转移。我将服务器设置为相同，但一个显示 VIPS 而另一个不显示。这是正常的吗？

服务器 A) [主要]

[root@titania ~]# ipvsadm -L
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
TCP  172.16.28.231:http lblc
  -> 172.16.28.229:http           Route   1      0          0
  -> 172.16.28.230:http           Route   1      0          0
[root@titania ~]

[root@titania ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:15:5D:1C:D4:04
          inet addr:172.16.28.233  Bcast:172.16.28.255  Mask:255.255.255.0
          inet6 addr: fe80::215:5dff:fe1c:d404/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1115300 errors:0 dropped:0 overruns:0 frame:0
          TX packets:686246 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:115178238 (109.8 MiB)  TX bytes:50225507 (47.8 MiB)

eth0:1    Link encap:Ethernet  HWaddr 00:15:5D:1C:D4:04
          inet addr:172.16.28.231  Bcast:172.16.28.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:838 (838.0 b)  TX bytes:838 (838.0 b)

[root@titania ~]#

[root@titania ~]# cat /etc/sysconfig/ha/lvs.cf
serial_no = 53
primary = 172.16.28.233
service = lvs
backup_active = 1
backup = 172.16.28.232
heartbeat = 1
heartbeat_port = 539
keepalive = 6
deadtime = 18
network = direct
debug_level = NONE
monitor_links = 1
syncdaemon = 1
syncd_iface = eth0
syncd_id = 0
virtual http {
     active = 1
     address = 172.16.28.231 eth0:1
     vip_nmask = 255.255.255.0
     port = 80
     send = "GET / HTTP/1.0\r\n\r\n"
     expect = "HTTP"
     use_regex = 0
     load_monitor = none
     scheduler = lblc
     protocol = tcp
     timeout = 6
     reentry = 15
     quiesce_server = 1
     server deimos {
         address = 172.16.28.229
         active = 1
         weight = 1
     }
     server phobos {
         address = 172.16.28.230
         active = 1
         weight = 1
     }
}
[root@titania ~]#

服务器 B) [次要]

IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
[root@titan ~]#
[root@titan ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:15:5D:1C:34:01
          inet addr:172.16.28.232  Bcast:172.16.28.255  Mask:255.255.255.0
          inet6 addr: fe80::215:5dff:fe1c:3401/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:529515 errors:0 dropped:0 overruns:0 frame:0
          TX packets:81242 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:31911311 (30.4 MiB)  TX bytes:4919228 (4.6 MiB)
          Interrupt:9 Base address:0x2000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:236 errors:0 dropped:0 overruns:0 frame:0
          TX packets:236 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:22532 (22.0 KiB)  TX bytes:22532 (22.0 KiB)

[root@titan ~]#
[root@titan ~]# cat /etc/sysconfig/ha/lvs.cf
serial_no = 51
primary = 172.16.28.233
service = lvs
backup_active = 1
backup = 172.16.28.232
heartbeat = 1
heartbeat_port = 539
keepalive = 6
deadtime = 18
network = direct
debug_level = NONE
monitor_links = 1
syncdaemon = 1
syncd_iface = eth0
syncd_id = 0
virtual http {
     active = 1
     address = 172.16.28.231 eth0:1
     vip_nmask = 255.255.255.0
     port = 80
     send = "GET / HTTP/1.0\r\n\r\n"
     expect = "HTTP"
     use_regex = 0
     load_monitor = none
     scheduler = lblc
     protocol = tcp
     timeout = 6
     reentry = 15
     quiesce_server = 1
     server deimos {
         address = 172.16.28.229
         active = 1
         weight = 1
     }
     server phobos {
         address = 172.16.28.230
         active = 1
         weight = 1
     }
}
[root@titan ~]#
centos
Martin Hope
CryptoJones
Asked: 2012-12-06 12:06:42 +0800 CST
  • 0

我们有一个 SQL 2005 Server，我们需要升级硬盘。我能想到的最有效的方法如下；

  • 使用 Backup Exec 在 D:\ 分区上运行备份（此分区包含 SQL 数据文件）
  • 禁用 SQL 服务在启动时启动
  • 将服务器重新启动到 RAID 控制器
  • 移除旧硬盘
  • 插入新硬盘
  • 初始化新数组
  • 开机进入操作系统
  • 将驱动器号 D: 分配给新阵列
  • 使用backup exec将所有Data文件恢复到D:\分区
  • 启动时启用 SQL 服务
  • 重启服务器

这是最好的方法吗？我错过了什么吗？

sql-server