LTO Tape/6
Don't trust this information.
LTO-6 SAS Drive is assumed to be used (for now).
RHEL/CentOS 8, or Fedora 28 and up is assumed to be used in this guide, but tape drivers are part of the mainline Linux kernel and supported by all distros.
Links:
https://www.reddit.com/r/sysadmin/comments/3qfyhm/how_to_start_using_an_lto6_tape_backup_drive_with/cyxpzo5/ https://www.reddit.com/r/sysadmin/comments/3qfyhm/how_to_start_using_an_lto6_tape_backup_drive_with/ https://www.quantum.com/serviceandsupport/softwareanddocumentationdownloads/ltfs/index.aspx?whattab=Third https://www.ibm.com/support/knowledgecenter/en/STQNYL_2.2.2/ltfs_reference_tools_linux.html
HBA (Host Bus Adaptor)
Currently using: LSI 9267-8i 6Gb/s PCI-Express 2.0 512MB 8Port SATA/SAS + 8087 SATA Cable Battery
RAID-on-Chip Controller: LSISAS2208 Dual-Core RAID on Chip (ROC) Host Bus Type: x8 lane PCI Express® 2.0 Cache Memory:512MB 1333MHz DDRIII SDRAM Internal Ports: 8 Data Transfer Rates: Up to 6Gb/s per port Devices Supported: Up to 128 SAS and/or SATA devices Internal Connectors: 2 Mini-SAS SFF8087 (side mount)
Drive
LTO5 and up support LTFS. But all support Tar and BareOS.
LTO Tape Drive support is part of the mainline Linux kernel through the `st` module thanks to contributions from IBM, so no drivers are actually needed for a tape drive to work.
To check to see that a tape drive is accessible, first check that /dev/tape/by-id exists and contains an nst0 device. If so, the Linux kernel already detected your tape drive and no further drivers are necessary. As for software though...
Also add your normal user to group `tape`.
Backup Software
Backup Software determine the format of the data being pushed to the tape. We will only describe open source software available at no cost, because if you are an actual enterprise willing to pay big bucks stop reading this guide and start calling your IBM sales rep to purchase IBM Spectrum Protect(tm).
Tar (Simplest)
It is good to run tar to test write speed, though using it as a backup method leaves much to be desired, so rely on bareos after.
See LTO Tape. Make sure to always disable hardware compression using mt.
# mt -f /dev/nst0 compression 0 # mt -f /dev/nst0 defcompression -1
LTFS (Medium)
Build from the upstream IBM source code rather than using vendor source code, which sucks. A handy source rpm is provided.
https://github.com/LinearTapeFileSystem/ltfs/wiki
https://github.com/piste2750/rpm-ltfs
https://fedoramagazine.org/how-rpm-packages-are-made-the-source-rpm/
All commands should be done as normal unprivileged user: the sudo commands are elevated to root.
In RHEL/CentOS 8, install the dependencies:
sudo dnf install rpm-build rpmdevtools
First, create the rpmbuild setuptree in your home directory.
rpmdev-setuptree
Download this .spec file, and place it into ~/rpmbuild/SPECS/ltfs.spec. Then run the following src.rpm packaging command.
rpmbuild -bb ~/rpmbuild/SPECS/ltfs.spec
Install the dependencies needed to build the source rpm.
sudo dnf builddep ~/rpmbuild/SRPMS/ltfs-2.4.1.2-10254.src.rpm
Build an rpm from a .src.rpm file:
rpmbuild --rebuild ~/rpmbuild/SRPMS/ltfs-2.4.1.2-10254.src.rpm
Now the rpms can be installed
cd ~/rpmbuild/RPMS/x86_64
sudo dnf localinstall ltfs-2.4.1.2-10254.x86_64.rpm ltfs-debuginfo-2.4.1.2-10254.x86_64.rpm ltfs-debugsource-2.4.1.2-10254.x86_64.rpm
Now the LTO Drive can be used. Skip all the build and install instructions in this post and use that:
BareOS (Enterprise)
Not an operating system, but "Backup Archiving REcovery Open Sourced" with tape as one key storage backend. It was forked from Bacula. Does not require LTFS.
bareos-sd: container_name: bareos-sd image: barcus/bareos-storage devices: - /dev/tape/by-id/scsi-3500e09efff0f9bb6:/dev/tape/by-id/scsi-3500e09efff0f9bb6
Labelling Tapes
https://tapelabel.de/lto-sample/lto-sample.html
IBM LTO Ultrium Cartridge Label Specification
I have been using Avery brand model "J8167" A4 size "Premium inkjet" "White Trueblock" "Mailing Labels" label sheets to reasonable short-term success.
Long-term properties are not yet tested.
Printing was done in a decent quality multifunction household printer.
A metal ruler and craft knife was used to cut out the labels by gently cutting along the lines between the labels.
Settings:
"Stock label type": "blank"
