Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base

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VXVM 6.1 – How to Use Ordered options with vxassist command

 If the -o ordered option is specified when creating a volume, vxassist uses the specified storage in the following order: 1. Concatenate disks. 2. Form columns. 3. Form mirrors. For example, the following command creates a mirrored-stripe volume with 3 columns and 2 mirrors on 6...

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VXVM 6.1 – How to use ctrl ( Storage Controller) option with vxassist?

To create a  volume where two enclosures are connected to a host. The first through controllers c1, c2 and the second through controllers c3, c4. The following can be used: # vxassist make vol1 1024 !ctlr:c1 results in disks from the first enclosure being excluded from the...

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Solaris 10 – How to access SVM root disk from fail safe / Cdrom boot

This procedure explains the steps required to access a root filesystem under SVM, during the situation when the solaris cannot boot in normal way and it require to boot from failsafe or cdrom. In this procedure the device /dev/dsk/c0t0d0s0 is used as our root filesystem slice.....

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VCS 6.1 – How to configure and display information about Group and Atomic Broadcast (GAB) ports

The gabport utility displays GAB port information or changes the heartbeat timeout value of a user client process on a GAB port. In normal operation, a GAB client process should heartbeat to GAB at a certain interval. GAB uses this mechanism to monitor the aliveness of...

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VCS 6.1 – How to allocate two disk heartbeating resources, one for port a (the GAB control port) and one for port h (the VCS port) using gabdiskhb.

The gabdiskhb utility sets up and maintains the configuration of GAB driver heartbeat disk regions. GAB driver heartbeat disk regions provide channels in addition to the network connections for protection from network failures. These resources describe a 64K region that GAB uses to read and write...

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VCS 6.1 – How to check the cluster node Heartbeat connectivity using dlpiping ?

The dlpiping utility exchanges network traffic over a specific DLPI network device to test network connectivity. Each host on the network being tested should run an instance of dlpiping in server mode to reflect packets from the other hosts. An instance of dlpiping in client mode...

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Solaris ZFS Command Line – Solaris Admin Reference

The ZFS file system is a new kind of file system that fundamentally changes the way file systems are administered, with the below mentioned features: ZFS Pooled Storage ZFS uses the concept of storage pools to manage physical storage. Historically, file systems were constructed on top of a...

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