OK.? That is interesting.? I am assuming tps is transfers per sec? I would have to get a stop watch, but it seems to go a bit of time, and then a write. Is there something that would accumulate this and give me a summary over some period of time?? Of course it better NOT be doing its own IOs... On 11/10/19 6:03 PM, shimi wrote:> iostat 1 > > On Mon, 11 Nov 2019, 00:11 Robert Moskowitz, <rgm at htt-consult.com > <mailto:rgm at htt-consult.com>> wrote: > > I just built a CentOS7 system on a Zotac NANO PC. > > I used a 320GB 2.5" HD I had sitting around and installed with > Standard > Partitions on XFS. > > The drive is spinning, nonstop. > > How can I monitor if there is actually disk i/o to warrant this > constant > spinning. > > So noatime for all partitions work with XFS?? I did some browsing and > the claim is XFS uses realtime which is better? than noatime? > > Perhaps it is just occasional writes to messages (at least 1 a > minute) > that determines to keep on spinning. > > But it is annoying. > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org <mailto:CentOS at centos.org> > https://lists.centos.org/mailman/listinfo/centos >
On 11/11/19 1:37 PM, Robert Moskowitz wrote:> OK.? That is interesting.? I am assuming tps is transfers per sec? > > I would have to get a stop watch, but it seems to go a bit of time, and > then a write. > > Is there something that would accumulate this and give me a summary over > some period of time?? Of course it better NOT be doing its own IOs...I like iostat -x 4 which will give a summary every four seconds of accumulated stats, but check the man page for all the options you can use. iotop (yum install iotop) may also be helpful as it shows disk usage per process like top does for CPU and memory. Peter
On 11/10/19 8:38 PM, Peter wrote:> On 11/11/19 1:37 PM, Robert Moskowitz wrote: >> OK.? That is interesting.? I am assuming tps is transfers per sec? >> >> I would have to get a stop watch, but it seems to go a bit of time, >> and then a write. >> >> Is there something that would accumulate this and give me a summary >> over some period of time?? Of course it better NOT be doing its own >> IOs... > > I like iostat -x 4 which will give a summary every four seconds of > accumulated stats, but check the man page for all the options you can > use.? iotop (yum install iotop) may also be helpful as it shows disk > usage per process like top does for CPU and memory.basically no i/o, but the drive is spinning like mad.? It could be the hardware as on boot I do get the warning it was never tested upstream... I added noatime to fstab and then a 'mount -a' but no difference in behavior.