dasdfmt performance
This week I got asked multiple times on how to speed up the formatting of classical ECKD DASDs. The command to use is dasdfmt which is part of the s390-tools package. In the newer distributions there is an option … Read the rest
ECKD
Raw ECKD access from zLinux
Since a while the Linux DASD driver has been enhanced to access full ECKD tracks. Basically the following steps are needed:
- Take the device offline from other System z operating systems
- get the device online in zLinux
- switch the device