Reaching the ok Prompt There are several ways to reach the ok prompt, depending on the state of the system and the means by which you are accessing the system console. In decreasing order of desirability, the list is as follows: Note – To reach the ok prompt after a shutdown or reset of the server module, the auto-boot? option must be set… Leer más »
https://docs.oracle.com/cd/E18752_01/html/819-5461/gbchx.html Sending and Receiving ZFS Data The zfs send command creates a stream representation of a snapshot that is written to standard output. By default, a full stream is generated. You can redirect the output to a file or to a different system. The zfs receive command creates a snapshot whose contents are specified… Leer más »
write sync; dd if=/dev/zero of=tempfile bs=1024k count=10240; sync zpool iostat 1 5000 read
LC_CTYPE.txt vi /etc/environment add these lines… LANG=en_US.utf-8 LC_ALL=en_US.utf-8
Q: I’m tired of typing ‘-f /dev/sgc’ all the time. How do I set a default device that ‘mtx’ looks at? A: Set the CHANGER environment variable. For example, with ‘bash’: export CHANGER=/dev/sgc
short: the capacity of a used tape can be increased only by reformatting the tape medium. This topic describes methods the IBM Spectrum Archive™ uses to modify data as if it were overwritten or erased. LTFS does not overwrite data recorded on a tape medium, even if a file in the tape medium appears… Leer más »
Create ltfs tape /opt/SUNWltfs/bin/mkltfs -d /dev/rmt/2 -e ltotape Mount ltfs # mkdir /mnt/lfts #/opt/SUNWltfs/bin/ltfs -o devname=/dev/rmt/2 -o tape_backend=ltotape /mnt/ltfs Edit files, then unmount the file system when done. # umount /ltfs OR Daemonize ltfs: /opt/SUNWltfs/bin/ltfs -o devname=/dev/rmt/2 -o tape_backend=ltotape /mnt/ltfs -o daemonize -o logfile=/log Edit files, then unmount the file system when done. # umount… Leer más »
https://www.cyberciti.biz/hardware/unix-linux-basic-tape-management-commands/ Tape devices should be used on a regular basis only for archiving files or for transferring data from one server to another. Usually, tape devices are all hooked up to Unix boxes, and controlled with mt or mtx. You must backup all data to both disks (may be in the cloud) and the tape… Leer más »
source: https://www.cyberciti.biz/faq/linux-tape-backup-with-mt-and-tar-command-howto/ Magnetic tape is a non-volatile storage medium consisting of a magnetic coating on a thin plastic strip. Nearly all recording tape is of this type, whether used for video, audio storage or general purpose digital data storage using a computer. How do I make backup using tapes under Linux operating systems? Linux… Leer más »
3 Configuring Storage Hosts and Devices Carry out the storage configuration tasks outlined in this chapter before proceeding further with SAM-QFS installation and configuration. The chapter outlines the following topics: Configuring Primary Storage Configuring Archival Storage Configuring Storage for High-Availability File Systems Configuring Primary Storage In a SAM-QFS file system, primary disk or solid-state disk… Leer más »