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AIX掛載Linux下的NFS

日期:2017/2/28 16:01:22   编辑:Linux教程

題記:本次是由於數據庫備份文件太大了,於是想將備份文件存放在雲存儲中,這裡是將雲存儲以NFS方式掛載到系統中。

www.linuxidc.com:/> mount 192.168.121.24:/mnt/ws1_fs/db_backup /backup
mount: 1831-008 giving up on:
192.168.121.24:/mnt/ws1_fs/db_backup
vmount: Operation not permitted.

www.linuxidc.com:/> showmount -e 192.168.121.24
export list for 192.168.121.23:
/mnt/ws1_fs 192.168.120.*
/mnt/ws1_fs/db_backup 192.168.128.*

www.linuxidc.com:/> nfso -o nfs_use_reserved_ports=1 --> 修改這個後正常
Setting nfs_use_reserved_ports to 1
www.linuxidc.com:/> mount 192.168.121.24:/mnt/ws1_fs/db_backup /backup
www.linuxidc.com:/> df -k
Filesystem 1024-blocks Free %Used Iused %Iused Mounted on
/dev/hd4 2097152 2039740 3% 3427 1% /
/dev/hd2 5242880 1918340 64% 90779 18% /usr
/dev/hd9var 3145728 555992 83% 851 1% /var
/dev/hd3 2097152 1968392 7% 449 1% /tmp
/dev/fwdump 1048576 1048088 1% 4 1% /var/adm/ras/platform
/dev/hd1 20971520 12662908 40% 28343 1% /home
/dev/hd10opt 2097152 2054028 3% 707 1% /opt
/dev/Oraclelv 20971520 8489068 60% 19707 2% /oracle
/dev/lvbillingcdr 196608000 160211388 19% 426076 2% /billingcdr
/dev/lvbillingarch 225443840 199815628 12% 115 1% /billingcdr/archivelog
/dev/lvbillingbak 435159040 64928800 86% 12 1% /billingcdr/billingbackup
192.168.121.24:/mnt/ws1_fs/db_backup 103813753376 47553553312 55% 144954938 99% /backup

www.linuxidc.com:/> cd /backup
www.linuxidc.com:/backup> ls -l
total 104
drwxrwxr-x 2 oracle dba 4096 Dec 05 15:52 bk
www.linuxidc.com:/backup> su - oracle
$ cd /backup/bk
$ mkdir abcd
mkdir: 0653-358 Cannot create abcd.
abcd: There is an input or output error.

www.linuxidc.com:/tt01> cat /etc/passwd | grep oracle
oracle:!:123:1002::/oracle:/usr/bin/ksh
www.linuxidc.com:/tt01> id oracle
uid=123(oracle) gid=1002(dba) groups=1(staff),1003(hagSUSEr),1001(oinstall)

然後在nfs server上創建一oracle用戶後,問題解決。

在AIX上掛載了雲存儲(以NFS方式掛載),目的是用於數據庫的RMAN備份,但是在做rman備份測試時,出現如下錯誤:
測試腳本:
run {
allocate channel t1 type disk;
backup
skip inaccessible
format '/backup/bill_db/arclogback_%s_%p_%t_%d'
(archivelog all
);
release CHANNEL t1 ;
}
報錯:
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 12/06/2011 09:40:39
ORA-19504: failed to create file "/backup/bill_db/arclogback_316_1_20111206_769167624.bk"
ORA-27054: NFS file system where the file is created or resides is not mounted with correct options
IBM AIX RISC System/6000 Error: 13: Permission denied
Additional information: 4

查了下metalink,得到如下的解決方法:
出現這個錯誤有三種方法解決:
(1)set event 10298 需要重啟數據庫生效
alter system set event='10298 trace name context forever,level 32' scope=spfile;
(2)mount時指定一些參數:
mount -o rw,bg,hard,rsize=32768,wsize=32768,vers=3,cio,intr,timeo=600,proto=tcp 192.168.121.24:/mnt/ws1_fs/db_backup /backup
(3)打補丁:5146667,這種方法要將數據庫關閉,操作比較比較麻煩。
上面的三種方法中,使用了第2種,但是仍然是報同樣的錯誤,問題沒有解決!
由於是生產庫,第1、3種方法沒有試過。
最後還是從本地的存儲擴大了LUN,使得數據庫備份目錄有足夠的空間使用。

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