recovery

Replace a Faulty FRU from the SUN Oracle System with the replacefru Command

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Following section describes the procedure for replacing a FRU requiring maintenance from the system. The following FRUs can be maintained: XSCF> replacefru ——————————————————————————Maintenance/Replacement MenuPlease select a type of model which has FRU to be replaced. 1. CMU/IOU (CPU Memory Board Unit/IO Unit)2. FAN (Fan Unit)3. PSU (Power Supply Unit)4. XSCFU (Extended System Control Facility Unit)——————————————————————————Select … Read more

Clear faulty inode in Solaris

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clri , dcopy Use the clri command to clear a bad inode that fsck is unable to fix. clri writes zeros on the inodes with the decimal i-number on the file system stored on special. After clri is run, any blocks in the affected file show up as missing in an fsck of special and any data is lost. You cannot clear an inode on a mounted file system. … Read more

Recovering rebooted or crashed GlusterFS

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checking glusterfs configurations: [root@glustertest1 ~]# gluster volume info Volume Name: test_volType: DisperseVolume ID: b23f6c11-8dfe-4d51-919d-35a30dd75100Status: StoppedSnapshot Count: 0Number of Bricks: 1 x (4 + 2) = 6Transport-type: tcpBricks:Brick1: glustertest1:/glusterfs/brick1Brick2: glustertest2:/glusterfs/brick1Brick3: glustertest3:/glusterfs/brick1Brick4: glustertest4:/glusterfs/brick1Brick5: glustertest5:/glusterfs/brick1Brick6: glustertest6:/glusterfs/brick1Options Reconfigured:transport.address-family: inetnfs.disable: on[root@glustertest1 ~]# [root@glustertest1 ~]# gluster volume statusVolume test_vol is not started if its not started: mount glusterFS: [root@glustertest1 ~]# mount … Read more

Rename a GlusterFS Peer in RHEL

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Here are the steps:FYI, its not required to detach the peer. WARNING: Before proceed be sure of backup your data, and proceed with caution. Do not execute any command without understanding what it do exactly, be sure that you are in the correct path, make the correct names replacements in each command if apply (indicated … Read more

Disable Automatic Server Recovery (ASR) in HPE ProLiant Servers

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Automatic Server Recovery (ASR) is configured using RBSU available during the initial boot of the server by pressing the F9 key when prompted. The Server Availability menu in RBSU includes options that configure the ASR features: • ASR Status • ASR Timeout ASR Status The ASR Status option is a toggle setting that either enables … Read more

MySQL Server Time Zone Support

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This article describes the time zone settings maintained by MySQL, how to load the system tables required for named time support, how to stay current with time zone changes, and how to enable leap-second support. Beginning with MySQL 8.0, time zone offsets are also supported for inserted datetime values; see “The DATE, DATETIME, and TIMESTAMP Types”, … Read more

vsftpd terminated after buffer overflow detected in Linux

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Issue : When run the “ftp open” command, vsftpd terminated after buffer overflow detected printed. [root@unixonline ~]# ftp localhost Connected to localhost.localdomain. *** buffer overflow detected ***: /usr/sbin/vsftpd terminated ======= Backtrace: ========= /lib64/libc.so.6(__chk_fail+0x2f)[0x2b43730d0c5f] KERBEROS_V4 rejected as an authentication type Or “lftp” command “ls” is returned “Delaying before reconnect”. [root@unixonline ~]# lftp test@192.168.10.10:~> ls `ls’ at … Read more

How to Recover Removed File in Linux

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In this scenario, we are going to recover removed file in Linux OS.for example: /data/mongodb/audit/sh0-prm-audit.log is removed. Find the deleted file by lsof command: [root@unixonline]# lsof | grep -i delete init 1 root 9r REG 253,7 10406312 528590 /var/lib/sss/mc/initgroups (deleted) hald 2706 haldaemon 19r REG 253,7 10406312 528593 /var/lib/sss/mc/initgroups (deleted) ntpd 2874 ntp 4r REG … Read more