VSAN 6.0 monitoring

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• As for the rate of initiation process off staging area?

  Hello!

  Could someone confirm that this is the expected behavior to see SSD being emptied only twice on hard drives write buffer per day or even less in some circumstances. Currently we have up to 40 simultaneous Horizon linked clone users in our new environment but we gradually increase the number up to 250 by moving users from the old cluster to the new and the current amount of concurrent writes (IOs) at staging scares me gradually. Not clearly said in VSAN whitepaper algorithm cache which would be an expected rate, but I think that hot flushes more often would put less pressure on magnetic disks. Please take a look at the attachment.

  Thank you.

  Perttu

  No, you would typically see Turning off much more than that, but it is usually down to the amount of data is written to the buffer to write to the hybrid configurations.

  In my view, there is a statement in the http://www.vmware.com/files/pdf/products/vsan/VSAN-Troubleshooting-Reference-Manual.pdf indicating that destagin begins when the WB is 30% full.

  There is no tunable parameters for these algorithms setting customer-facing.

  I would like to use the observers VSAN utility to monitor the use of the WB that you add desktop computers more. There are details on how to use it in the troubleshooting guide.

  HTH

  Cormac

• Mix of hybrid and all-flash disk in the same vsan group groups

  What I believe "groups of hybrid mix discs and All-Flash is not a good practice" because we cannot control the vm to the location of data means data should go in such or such group of disks is not possible. So a question that I received from my client, it is why not vmware offers two different stores data creating a vsan cluster - a vsan datastore (hybrid) and another vsan data store (All-Flash). I felt that the customer's requirement is authentic as well. Correct me if I'm wrong. Looking for suggestions of experts vsan.

  1. it is not supported 2. It is not possible with the product today 3. Complicates the operational aspects (monitoring of disk space, balancing items, etc.), that's why VMware has not introduced this 4. Flash is about to become cheaper than the disk, why bother... Thank you

• Recommendation for size VMDK for IO Analyzer test vsan

  Hello

  Is there a size Analyzer IO Vmware VMDK recommendation? When deploy you from the model of the test is performed on the second disc of 100 MB. I saw a few recommendations to remove this second disc and add a great new.

  Analyzer 01-100MB on disk, I get 12000 IOPS / s, 45 Mbit/s on a random test of 4k_70% read_80%.

  Analyzer 02-100 GB drive, I have 1300 iops, 5 Mbps on a random test of 4k_70% read_80%.

  Caching is disabled on all drives and controllers (HP P420i). 3 x HP DL380 (200SSD, 5 x 900 10kSAS).

  I'm surprised the difference that both drives should reach the 200 GB ssd. Or analyzers from writing to disks are formatted with any FS. Obviously, the second machine with the largest disk not reading so that lower iops cache hits is but I don't know why, as are big enough SSDS.

  Thank you

  Remember, VSAN is all about having your work in cache, so that most of the readings reached the level of flash cache.

  It seems that monitor 1 with 100MB is mainly in the cache, while 2 parser is not.

  We are working on a guideline that the working set of an application is usually 10% of its capacity. It is sometimes more, sometimes less is, but 10% is a generally accepted rule.

  I don't know how the Analyzer has been configured, but it is the workload it contains repeated data profiles, while some cached data can be read?

  If this is not the case, this may mean that you are simply fill the SSD write buffer, it disabling the disk rotation when it reaches a particular threshold, then fill again. This means that you are bound by disk magnetic performance and get very little by way of benefit from caching layer of VSAN.

  Things to look at:

  1. is Analyzer using 100 GB just like its working set, and cela will reflect your production workloads? If this isn't the case, reduced to a size that is the reflection of a real production working together? If most of your VMS use 100 GB VMDK, consider a set of 10 GB size work.

  2 Analyzer uses patterns to repeat? If not, configure it to do this, or use another tool of reference that makes.

  HTH

  Cormac

• Physical disk: how to monitor.

  Hello

  I use Dell servers, three of them, with by hcl

  -perc h200 hba

  -200 GB SSD used mixed SAS (OEM folding/Sandisk lightning LB206M)

  Now, I have a disk group of unhealthy status caused by a SSD drive in 'permanent drive failure. I understand that replace the drive I lose the disk group.

  My question is how to monitor the status of having an advance warning and, in case, how to test the device failure.

  Thanks for any suggestions,

  Joshua

  Joshua

  As I suspected, your SSD there not all the INTELLIGENT features reported outside the current temperature and the number of read/write errors, but no thresholds, now this means two things

  1. the player does not support these SMART features

  2. the implementation of the features is not the standard method of INTELLIGENT integration

  It would be a question for Dell take their engineering products and for them, in order to participate with SanDisk, I think always that it's odd that SanDisk took that model certified but Dell have

  So with this drive, it would take before that VSAN knows that something is wrong.  At least now you know now

  Simon

• Need help to find an adapter for a third-party monitor

  Hi all! I find myself in need of a little guidance, and I hope that someone out there will have a quick n easy for me...

  I have a Mid-2011 27 'iMac. which has two ports Thunderbolt It is taken with a Wacom tablet that I use constantly, and the other is made by an external hard drive to a solid state, which has a built-in cable to Thunderbolt (no way to hang it on a different port). I also have a 27 "HP monitor that is currently connected via an HDMI USB adapter.

  The problem is that the HP monitor is actual "jiggy" - the USB does not seem fast enough to deal with requests for the monitor. It is almost unusable. I know I should run it via a HDMI adapter Thunderbolt, but as I have already mentioned the two my Thunderbolt ports are already in use.

  Someone at - it ideas? I need sort of three to two ports Thunderbolt hooks, but I can't seem to find anything for less than $300 that would work. (I am illiterate when it comes to the different cables, adapters, ports, etc., so I hope someone can point me in the right direction by using short words... Most of the products that I travel through list specifications that me Chicane).

  The monitor has two HDMIs and a VGA port, and my iMac has a Firewire 800 port, if that helps at all...

  2011 iMac have only 1 Thunderbolt port and there is no such thing as a Mid-2011, you must have an iMac of year later, if it has 2 ports Thunderbolt. All the 27 "iMacs, from 2012 to 2015 the current have 2 ports Thunderbolt.

• MBP: monitor detected but no image except by VGA

  I have a MBP of Mid 2012 running latest El Capitan.

  When I connect to an external monitor, it is detected correctly in views (exact name, resolution, etc.), but the monitor doesn't detect any image from the portable computer. I tried the DVI - D and DisplayPort with various cables and monitors with the same result, but a picture appears if I connect to VGA. It started in the past week.

  The built-in display does not work normally.

  Looks like a hardware failure in the computer DisplayPort connector laptop, as the pins are worn or something?

  Any other ideas?

  Hi johngirvin,

  Thank you for using communities Support from Apple. Sorry to hear that you had these display problems with your MacBook Pro. Looks like you've been on the right track trying to solve this problem. If you continue to have problems, you can find the additional steps described in the following article useful, up to and including contacting Apple Support if necessary:
  

  Get help with graphical problems on the external displays connected to your Mac - Apple Support

  Concerning

• Activity monitor close unexpectedly when running in the background on the left

  Recently upgraded to Mac OS Sierra and Activity Monitor to close unexpectedly when running back plan left (do not smoke and open the activity monitor window) to a blank desktop when you use an application in another office. Clean install I tried but the activity monitor would still be down at random times when left running in the background to another empty office. Someone at - there experience this problem? For most browsing on the web using Safari on another desktop computer when Activity Monitor quit unexpectedly.

  Activity monitor also using a lot of energy since the upgrade?

  Any help would be appreciated. Thank you.

  Model: MacBook Pro (retina, 13 inches, early 2015)

  OS: macOS Sierra: 10.12 (installed via the upgrade, own installed after this problem).

  Do not forget that you are using the activity monitor version which was installed when you upgraded to Sierra. Activity monitor located in the your Mac utilities folder.

  If you have moved a previous version to a different location, it will not work.

  If you are using the correct version, post crash report. Error reports lies in the application of the Console under System reports or reports from usersand end in the suffix .crash. If you choose to do so, omit or hide any information that you consider personal.

• monitors external macOS Sierra + MacBook Pro 15 "+ 3 = gel

  This facility has worked with El Capitan (2 Thunderbolts-> DisplayPort + HDMI 1 = 3 monitors).

  Update of macOS Sierra - as soon as I connect a 3rd monitor (any order) - it freezes the whole system. Two monitors works very well

  If I boot with three monitors connected, the screen goes black and I have to power down manually.

  My system: MacBook Pro (retina, 15 inches, end of 2013)

  Same problem reported by other users on SuperUser.com.

  Someone else had a similar problem? Everyone is running the same configuration without problem? All known resolution?

  There has been a lot of complaints of not being able to use the resolution full screen on 3 monitors of party, who has worked in El Capitan.  I've seen all the problems such as you report.

  However, I guess the graphics driver passed under changes in the Sierra, and it is possible, that this is yet another side effect.

  You may very well be a bug, so that developers know that there is still another problem with the graphics driver Sierra

  BugReporter (account free ADC (Apple Developer Connection) required for BugReporter)

  <http://bugreporter.apple.com>

  Anyone can get a free ADC account at:

• How to document the application to another monitor

  I have a setup of 3 monitor for work. I need to have my video capture software, Media Express, on the primary and secondary monitor. On my 3rd monitor, I wish I had Final Cut for editing.

  Does anyone have a solution for this?

  In setting system preferences displays, displays as an extended desktop, and then drag one poster rather than another. For more information, scroll down to the last section on how to "implement some screens for implementing mirrored and extended desktop":

  Connect multiple monitors to your Mac

  https://support.Apple.com/kb/PH19039

• 4 k monitor on macbook pro

  I have a MBP 15.4 (retina) and need to find a 4 k monitor that will work with my MBP...

  Hi Labecote,

  Thank you for using communities Support from Apple! For more information on the use of 4K displays with your Mac, including system requirements and specific models that are known to work, you can find the following article useful:
  

  With the help of 4K and Ultra HD TVs with your Mac - Apple Support screens

  See you soon!

• Strange shadows on the Sierra of the Mac OS on an external monitor

  After upgrading to Mac OS Sierra, I noticed that there are these strange shadows. It of almost like the gradient of a shadow is not fluid and smooth:

  Screenshots:

  https://www.dropbox.com/s/dj6g3x68c9ggwez/screenshot%202016-09-24%2008.34.42.PNG? DL = 0

  https://www.dropbox.com/s/2ql2prnhn2k27rz/screenshot%202016-09-24%2008.35.43.PNG? DL = 0

  Is this normal, or is there a problem? Recommend a fix?

  I'm on Mac mini (mid-2011) and a screen LCD Dell UltraSharp U2913WM 29 inches.

  ... However, if the screenshots are picking up, it seems less like a problem of monitor and more like an incompatibility of graphics cards with MacOS Sierra?

  This seems to be quite normal. The windows are translucent, and what I see, this is the result of the image behind the window.

  It was the same thing in El Capitan (and, I suppose, Yosemite, as well).

  You can go to system preferences - > accessibility-> display and select "reduce transparency" if it bothers you.

• 1440 p monitor recognized as 1080 p over HDMI

  I've updated to Sierra yesterday, and now my ASUS PB278 displays 1080 p instead of its native 1440 p over HDMI. This monitor has worked flawlessly with El Capitan and Yosemite on HDMI.

  I also tried to connect more love at first sight with an HDMI adapter and that no longer works.

  Anyone else having this problem?

  Well Yes. Exactly the same problem you described. In light of this + problems with drivers for my Performance MX Logitech mouse (restless as hell scroll), immediately restored to El Capitan.

  Will be held off the coast of the upgrade until this issue is resolved.

• Running w / HR monitor AND headphones wireless w / Apple Watch 2 series

  Since obtaining Apple Watch series 2, I've been out running with wireless headphones Powerbeats2 alongside the screen TickR HR, both related to the watch simultaneously via Bluetooth. While this works great, I wonder if I can do even better and lose the style HR chest strap monitor. Has anyone had success with wireless headphones that double as a monitor of human resources (e.g., Bose Soundsport Pulse), and specifies how was the heart rate?

  Hello

  Apple Watch includes a heart rate sensor built-in.

  If you have not already done so, you can try to use this instead of an external monitor. When you use the application of the workout, the heart rate is measured continuously during the training:

  • Your heart rate. What it means, and where on Apple Watch you will find. -Apple Support
  • Work with your Apple Watch - Apple Support

• I have an old Mac Mini with a DVI Port that came with a VGA DVI-adapter.  Tonight, my monitor went down.  Brand new monitor works with that?  Can I use an adapter?  If yes should which adapter I?

  I have an old Mac Mini with a DVI Port that came with a VGA DVI-adapter.  Tonight, my monitor went down.  Brand new monitor works with that? Any recommendations? Can I use an adapter?  If yes should which adapter I?

  You can use any DVI monitor DVI port directly or have any VGA monitor with the power that you adapter. A HDMI monitor might work with an adapter DVI to HDMI in a pinch, but HDMI tends to be more fickle.