Re: IFL performance reference

2016-02-05 Thread Mrohs, Ray (JMD)
Thanks. The raw PCI numbers on the charts and graphs suggest a 3-fold performance increase over a z10 BC. However with onboard JIT optimization and hardware multithreading, the z13 could show a 10x improvement with Java workloads. Ray Mrohs -Original Message- From: Linux on 390 Port

Using solid state drives with Linux guests

2016-02-05 Thread Martha McConaghy
Has anyone had experience using solid state drives (SSD) with a zLinux guest running under z/VM 6.3? We recently got a DS8870 that has quite a few SSDs. However, I haven't done anything with them yet. I would guess that I just configure arrays on them like normal disks, make them FB, create a

Re: Using solid state drives with Linux guests

2016-02-05 Thread Kurt Acker
David Simpson presented this material at last years Oracle SIG conference: http://www.oraclezsig.org/2015presentations/THU_1045_2015_Simpson_IO_V3.pdf - That event will be held on April 26 and 27th this year: http://www.oraclezsig.org/ Bill Bitner has also presented on its very positive

2016-02-02 Linux on z Systems - Kernel 4.3 related updates on developerWorks

2016-02-05 Thread Gerhard Hiller
Please refer to http://www.ibm.com/developerworks/linux/linux390/whatsnew.html for several updates to the 'Development stream': * description of upstream kernel 4.3 features that were contributed by Linux on z Systems development * kernel 4.3 patch for kernel message catalog * s390-tools