librados integrity tests.

2013-11-03 Thread Bill Hastings
Hi All We are planning to test Ceph for certain use cases. But how do folks usually measure integrity of librados i.e what kind of tests are run to measure integrity of the block device. Does RADOS also depend on MDS? Thanks Bill -- To unsubscribe from this list: send the line "unsubscribe ceph-d

Re: Understanding Ceph

2011-12-18 Thread Bill Hastings
nd C and C happens to be down during the write will the write be deemed a failure till C is back up or is another replica chosen in place of C? On Sun, Dec 18, 2011 at 9:17 AM, Yehuda Sadeh Weinraub wrote: > On Sun, Dec 18, 2011 at 8:43 AM, Bill Hastings wrote: >> Thanks for the response.

Re: Understanding Ceph

2011-12-18 Thread Bill Hastings
Hi Bill, > > 2011/12/18 Bill Hastings : > >> I am trying to get my feet wet with Ceph and RADOS. My aim is to use >> it as a block device for KVM instances. My understanding is that >> virtual disks get striped at 1 MB boundaries by default. Does that >> mean that

Understanding Ceph

2011-12-17 Thread Bill Hastings
Hi All I am trying to get my feet wet with Ceph and RADOS. My aim is to use it as a block device for KVM instances. My understanding is that virtual disks get striped at 1 MB boundaries by default. Does that mean that there are going to be 1MB files on disks? Let's say I want to update a particula