Author: Ramdev

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Solaris Tips : Check current active boot device, when used in volume manager (SDS / SVM / VxVM)

During regular maintenance It is often a requirement  to us to determine which  disk we actually boot from when the root volume is under volume manager control.   Solaris on SPARC   Sparc with SVM  # prtconf -pv|grep bootpath: bootpath: ‘/sbus@3,0/SUNW,fas@3,8800000/sd@1,0:a’ Sparc with VxVM Root Volume...

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RHEL 6.3 – LDAP Series – Part 1 : Implementation of LDAP Authentication

What is LDAP  LDAP ( Lightweight Directory Access Protocol) is client-server protocol which provides directory services to the client machines.  Each LDAP server contain the  data required to making up the  LDAP database, commonly BDB  ( Berkely DB),  a high performance transactional database.  LDAP manages it’s...

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Storage : Expansion of solaris filesystem after expanding the corresponding LUN from storage.

Procedure to expand default partition table using native OS utilities: Note: Because the partition table will be removed and rewritten, the following procedure is appropriate ONLY when the file system on the disk has been created on slice 2 and spans the entire Symmetrix volume. The following...

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Mastering GrUB – Part 3 – Grub Booting and Images

Booting GRUB from the network The following instructions don’t work for *-emu, i386-qemu,i386-coreboot, i386-multiboot,mips_loongson, mips-arc and mips_qemu_mips to generate a netbootable directory, run:       grub2-mknetdir –net-directory=/srv/tftp –subdir=/boot/grub -d /usr/lib/grub/<platform> E.g.  for i386-pc:     grub2-mknetdir –net-directory=/srv/tftp –subdir=/boot/grub -d /usr/lib/grub/i386-pc Then follow instructions printed out by grub2-mknetdir on...

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Solaris Admin Reference – Solaris Storage Multipathing – MPxIO ( aka STMS, SCSI_VHCI)

 What is Oracle Solaris Storage Multipathing MPxIO? MPxIO Provides multipath access to storage luns by grouping together the physical paths and presenting a single logical path. Supports both symmetric and asymmetric storage  Controls failover / failback of LUNs as appropriate due to path failures, either manually or...

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