Write same failed. manually zeroing rhel 7

22 Aug 2016 HelloIn a VM with CentOS 7, kernel 3.10.0-327.28.3.el7.x86_64, the console root login shows dm-0: WRITE SAME failed. Manually zeroing. 10 Mar 2017 Hi guys, I install centos 7 on a virtual machine (esxi 6), when boot centos I see below message: My machine name Login: [27.335939] dm-2: It's likely related to the mass storage being VMware in both cases. Basically, it's saying that it tried to execute a SCSI command called WRITE Solution Verified - Updated November 30 2017 at 7:38 AM -. English Mar 19 07:53:55 serverX kernel: dm-4: WRITE SAME failed. WRITE SAME failed. Manually zeroing is causing the system to take a long time to reboot (slow reboot). 17 Jun 2015 dmesg | grep "WRITE SAME": kernel: sda2: WRITE SAME failed. Manually zeroing. This is because the disk driver (in our case: the VMware SAME failed. Manually zeroing. [ 18.245041] sda2: WRITE SAME failed. Manually zeroing. Distribution: CentOS 6 & 7. Posts: 3,070. 16 Oct 2013 In syslog we see messages like WRITE SAME failed. Manually zeroing.22 Jan 2014 dm-0: WRITE SAME failed. Manually zeroing. linux-firmware 1.79.7 RfKill: Error: [Errno 2] No Changed in linux-lts-raring (Ubuntu):. status 7. It's likely related to the mass storage being VMware in both cases. If the actual zero'ing operation doesn't fail then the biggest problem here is the WRITE SAME feature and then falling back to the usual manual zeroing According to kernelnewbies.org/Linux_3.7, the WRITE SAME SCSI command "allows the same block to be efficiently replicated