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NetApp XCP 迁移工具-NFS共享数据迁移

背景
最近客户新上NetApp存储项目，需要把其他存储的NFS数据迁移至NetApp存储中，正好Netapp提供了非常方便NFS迁移工具NetApp XCP，借此正好写下此软件的使用指南。

实验环境介绍

信息IP地址路径
NetApp XCP 服务器（Centos7.7）192.168.0.99
源NFS共享服务器192.168.0.98/srvol1
目的存储（NetApp）192.168.0.97/dsvol1
XCP catalog位置192.168.0.97/catalog

许可

NetApp提供90天的试用许可，需要自行登录 https://xcp.netapp.com 根据不同的环境申请许可。

NetApp XCP系统要求

NFS
System64-bit Intel or AMD server, minimum 4 cores and 32GB RAM
Operating System & Software• Recent Linux distribution (RHEL 5.11 or later or kernel 2.6.18-404 or later)
Special Requirements• Network connectivity and Troot level access to source and destination NFSv3 exports
• No other active applications
• Access to log in as root or to run sudo commands
Storage• 20MB of disk space for the XCP binary and at least 50MB of disk space for the logs that are stored in the /opt/NetApp/xFiles/xcp/ directory.
Supported Protocol Version• NFSv3 and NFSv4 (over TCP only)

NetApp XCP 系统优化设置

vi /etc/sysctl.conf 末尾添加如下参数，运行 sysctl -p 或者重启服务器应用配置

net.core.rmem_max = 16777216 
net.core.rmem_max = 16777216
net.core.wmem_default = 1342177 
net.core.wmem_max = 16777216 
net.ipv4.tcp_rmem = 4096 1342177 16777216 
net.ipv4.tcp_wmem = 4096 1342177 16777216 
net.core.netdev_max_backlog = 300000
net.ipv4.tcp_fin_timeout = 10

NetApp XCP Storage

NetApp XCP服务器对源卷和目的卷需要有root的访问权限

  • XCP服务器访问源卷的策略为只读，避免XCP服务器对源卷数据的修改。
  • XCP服务器访问目卷的策略为读写。
  • 如果源数据在DAS或SAN上，通过NFS共享服务器共享的，参考以下导出策略
# echo ‘/export 10.45.45.100(ro,no_root_squash)’ >> /etc/exports 
# sudo service nfs restart
  • 如果目的数据系统为NetApp LUN (FAS, E-Series, NetApp FlashRay® system)通过NFS服务器共享的，参考以下导出策略
# echo ‘/export 10.45.45.100(rw,no_root_squash, async)’ >> /etc/exports 
# sudo service nfs restart

NetApp XCP 软件安装

  1. 复制下载好的xcp安装包NETAPP_XCP_1.6.1.tgz 至linux服务器（我们这里是根目录）
  2. 解压安装包
    [root@XCP /]# tar zxvf NETAPP_XCP_1.6.1.tgz
  3. 转到安装目录
    [root@XCP /]# cd xcp/linux/ 
[root@XCP linux]#
  4. 运行 xcp show 或xcp help 会显示许可为激活
    [root@XCP linux]# ./xcp show localhost
(c) 2020 NetApp, Inc.
xcp: Host config file not found. Creating sample at '/opt/NetApp/xFiles/xcp/xcp.ini'
xcp: ERROR: License file /opt/NetApp/xFiles/xcp/license not found.
Register for a license at https://xcp.netapp.com
Xcp command : xcp show localhost
1 error
STATUS      : FAILED
[root@XCP linux]#
  5. 复制申请好的license文件至 /opt/NetApp/xFiles/xcp/ 目录。
    [root@XCP xcp]# ls -alt
total 8
drwxr-xr-x 4 root root  68 Oct 23 10:33 .
-rw-r--r-- 1 root root  71 Oct 23 10:28 xcp.ini
drwxr-xr-x 2 root root  21 Oct 23 10:28 xcplogs
drwxr-xr-x 3 root root  17 Oct 23 10:28 ..
drwxr-xr-x 2 root root   6 Oct 23 10:28 xcpfalogs
-rw-r--r-- 1 root root 352 Oct 22 09:33 license
[root@XCP xcp]#
  6. 激活XCP许可
    [root@XCP linux]# ./xcp activate
XCP 1.6.1; (c) 2020 NetApp, Inc.; Licensed to lu.yinjun@flow-ever.com yinjun [Jiangsu Flow-Ever Infor Tech Co Ltd.] until Sun Jan 17 18:06:47 2021
XCP already activated
  7. 验证是否有其他错误
    [root@XCP linux]# ./xcp show localhost
XCP 1.6.1; (c) 2020 NetApp, Inc.; Licensed to lu.yinjun@flow-ever.com yinjun [Jiangsu Flow-Ever Infor Tech Co Ltd.] until Sun Jan 17 18:06:47 2021
xcp: ERROR: Catalog inaccessible: Cannot mount nfs_server:/export[:subdirectory]
Failed with 'socket connect to 'nfs_server tcp 111 pmap2 c0': [Errno -2] Name or service not known'
xcp: HINT: Verify the settings in the host config file /opt/NetApp/xFiles/xcp.
  8. 配置catalog路径
    [root@XCP linux]# cat /opt/NetApp/xFiles/xcp/xcp.ini
# Sample xcp config
[xcp]
catalog = 192.168.0.97:/catalog
  9. 再次运行
    ```无任何报错

    [root@XCP linux]# ./xcp show localhost
    XCP 1.6.1; (c) 2020 NetApp, Inc.; Licensed to lu.yinjun@flow-ever.com yinjun [Jiangsu Flow-Ever Infor Tech Co Ltd.] until Sun Jan 17 18:06:47 2021

    getting pmap dump from localhost port 111…
    getting export list from localhost…
    sending 0 mounts and 0 nfs requests to localhost…

    == RPC Services ==
    ‘localhost’: TCP rpc services: MNT v1/2/3, NFS v3/4, NFSACL v3, NLM v1/3/4, PMAP v2/3/4, STATUS v1
    ‘localhost’: UDP rpc services: MNT v1/2/3, NFS v3/4, NFSACL v3, NLM v1/3/4, PMAP v2/3/4, STATUS v1

    == NFS Exports ==
    Mounts Errors Server
    0 0 localhost

    Xcp command : xcp show localhost
    Stats :
    Speed : 1.24 KiB in (1.88 KiB/s), 1.38 KiB out (2.10 KiB/s)
    Total Time : 0s.
    STATUS : PASSED

迁移NFS数据

  1. 扫描源卷信息源卷路径为：192.168.0.98:/srvol1 、ID号：flow-ever-scan-001
    [root@XCP linux]# ./xcp scan -newid flow-ever-scan-001 192.168.0.98:/srvol1
XCP 1.6.1; (c) 2020 NetApp, Inc.; Licensed to lu.yinjun@flow-ever.com yinjun [Jiangsu Flow-Ever Infor Tech Co Ltd.] until Sun Jan 17 18:06:47 2021
xcp: open or create catalog 'xcp': Creating new catalog in '192.168.0.97:/catalog/catalog'
Xcp command : xcp scan -newid flow-ever-scan-001 192.168.0.98:/srvol1
Stats       : 7 scanned, 7 indexed
Speed       : 12.4 KiB in (8.67 KiB/s), 52.8 KiB out (36.9 KiB/s)
Total Time  : 1s.
STATUS      : PASSED
[root@XCP linux]#
  2. 首次复制源数卷至目的数据卷
    [root@XCP linux]# ./xcp copy -newid flow-ever-copy-001 192.168.0.98:/srvol1 192.168.0.98:/dsvol1
XCP 1.6.1; (c) 2020 NetApp, Inc.; Licensed to lu.yinjun@flow-ever.com yinjun [Jiangsu Flow-Ever Infor Tech Co Ltd.] until Sun Jan 17 18:06:47 2021
Xcp command : xcp copy -newid flow-ever-copy-001 192.168.0.98:/srvol1 192.168.0.98:/dsvol1
Stats       : 7 scanned, 6 copied, 7 indexed
Speed       : 19.1 MiB in (5.56 MiB/s), 19.2 MiB out (5.57 MiB/s)
Total Time  : 3s.
STATUS      : PASSED
[root@XCP linux]#
  3. 同步复制数据（需要指定copy时使用的ID号）
    [root@XCP linux]# ./xcp sync -id flow-ever-copy-001
XCP 1.6.1; (c) 2020 NetApp, Inc.; Licensed to lu.yinjun@flow-ever.com yinjun [Jiangsu Flow-Ever Infor Tech Co Ltd.] until Sun Jan 17 18:06:47 2021
xcp: Index: {source: 192.168.0.98:/srvol1, target: 192.168.0.98:/dsvol1}
xcp: diff 'flow-ever-copy-001': 7 reviewed, 7 checked at source, 7 reindexed, 24.5 KiB in (15.1 KiB/s), 18.8 KiB out (11.6 KiB/s), 1s.
Xcp command : xcp sync -id flow-ever-copy-001
Stats       : 7 reviewed, 7 checked at source, no changes, 7 reindexed
Speed       : 25.1 KiB in (15.4 KiB/s), 19.9 KiB out (12.2 KiB/s)
Total Time  : 1s.
STATUS      : PASSED
[root@XCP linux]#
  4. 在Cutover前验证数据的一致性
    [root@XCP linux]# ./xcp verify -newid flow-ever-verify-001 192.168.0.98:/srvol1 192.168.0.97:/dsvol1
XCP 1.6.1; (c) 2020 NetApp, Inc.; Licensed to lu.yinjun@flow-ever.com yinjun [Jiangsu Flow-Ever Infor Tech Co Ltd.] until Sun Jan 17 18:06:47 2021
Xcp command : xcp verify -newid flow-ever-verify-001 192.168.0.98:/srvol1 192.168.0.97:/dsvol1
Stats       : 7 scanned, 7 indexed, 100% found (4 have data), 4 compared, 100% verified (data, attrs, mods)
Speed       : 38.1 MiB in (22.0 MiB/s), 138 KiB out (79.9 KiB/s)
Total Time  : 1s.
STATUS      : PASSED
[root@XCP linux]#
  5. 切换数据
    • 卸载源卷路径
    • 挂在新的NetApp路径至源挂载点
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