tag:blogger.com,1999:blog-4270346497183643494.post8010981664517784343..comments2024-03-15T05:03:09.921-07:00Comments on Cosonok's IT Blog: Dell Powervault MD3200i Brief Installation Walkthrough Notes with VMware vSphere HostsUnknownnoreply@blogger.comBlogger19125tag:blogger.com,1999:blog-4270346497183643494.post-76443451509054649512019-08-06T20:45:25.846-07:002019-08-06T20:45:25.846-07:00Hello, can I configure 8 ports (4 ports controller...Hello, can I configure 8 ports (4 ports controller 1 and 4 ports controller 2) on the same subnet?<br />So could it have 4Gbps speed, and 4 GBPS redundancy?<br />Sorry my english, i am using translator.Andre Brazhttps://www.blogger.com/profile/16392073888408911805noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-14520447657647362019-08-06T20:43:59.478-07:002019-08-06T20:43:59.478-07:00This comment has been removed by the author.Andre Brazhttps://www.blogger.com/profile/16392073888408911805noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-11250626027805244752014-03-03T07:32:51.209-08:002014-03-03T07:32:51.209-08:00I get the same error Kiran - did you work out what...I get the same error Kiran - did you work out what caused it?VMGeoffhttps://www.blogger.com/profile/15041586068595004512noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-36384285112191036472013-06-21T08:46:47.655-07:002013-06-21T08:46:47.655-07:00Hi VCosonok,
First I connected a laptop with IP 1...Hi VCosonok,<br /><br />First I connected a laptop with IP 192.168.128.103 and the MDSU Configuration assistant can recognize the MD3200i Console 0 MNGT, also recognizes Console 1 MNGT. <br /><br />But when I try to go through the wizard and try to change the Name, Password and Console 0 MNGT IP address it does not save and says that<br /><br />Fails to connect Array Management port(s). Please verfiy and make sure that Management port, can be accessed. (error I have translated from German)<br /><br />Do you have any idea on this error ?<br /><br />Thanks,<br />Kiran<br />Kiran K Telukuntahttps://www.blogger.com/profile/01392060630405421571noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-5064324337609865232013-01-18T03:35:45.000-08:002013-01-18T03:35:45.000-08:00Hi Duhaas,
There's no reason why you couldn&#...Hi Duhaas,<br /><br />There's no reason why you couldn't put the NICs all on the same subnet, but whether the MPIO would work properly is another question. If you're setting up a brand new box and have time, try it out in one subnet and see how it goes. The above follows information sourced from Dell's own MD3200i installation guide which uses different subnets and recommends that configuration.<br /><br />Cheers!<br />VCosonokCarsonokhttps://www.blogger.com/profile/05717017593953701040noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-78970869846562208992013-01-17T11:12:34.202-08:002013-01-17T11:12:34.202-08:00Is there a reason this cant all be done on the sam...Is there a reason this cant all be done on the same subnet and than tieing the vmkernel ports to the physical nics?duhaashttps://www.blogger.com/profile/15630013287919271015noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-57479763605223186652012-12-22T05:53:19.775-08:002012-12-22T05:53:19.775-08:00Hi, i have a MD3200i with 2 4port controllers and ...Hi, i have a MD3200i with 2 4port controllers and 2 Hyper-V Servers with 2 Gbit iSCSI ports. On the MD3200i i use the default IPs on the Controllers. On the Servers i will put the following: Server1 iSCSI1=192.168.130.201, iSCSI2=192.168.131.201 / Server2 iSCSI1=192.168.132.201, iSCSI2=192.168.133.201<br /><br />When i configure the Dell Modular Disk Configuration Utility how will i assign the host ports to the controller ports?<br />Can this works in active active mode?<br /><br />Thank you.vasileios paschalidishttps://www.blogger.com/profile/02113197339579245346noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-51714593052174154012012-07-31T07:28:17.504-07:002012-07-31T07:28:17.504-07:00Thanks , much appreciatedThanks , much appreciatedTCnoreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-22161461818299366952012-07-31T07:20:56.060-07:002012-07-31T07:20:56.060-07:00Configure each port - 0,1,2,3 in its own subnet. P...Configure each port - 0,1,2,3 in its own subnet. Patch 0,1 into the top switch, patch 2,3 into the bottom switch. Do this for both controllers.<br /><br />The idea is that 2 subnets exist exclusively on the top switch, 2 subnets exist exclusively on the bottom switch (no need to traverse an interconnect - so effectively a dual fabric.) <br /><br />Patch your hosts accordingly into top and bottom switches (i.e. one host connection to top, one host connect to bottom for dual-path,) and configure to use the correct subnets (i.e. for dual-path: host 01 might use subnet 0,2, host 02 subnet 1,3, host 03 subnet 0,2, ... ; or for quad-path they can use subnets 0,1,2,3.)<br /><br />Hope that makes sense.Carsonokhttps://www.blogger.com/profile/05717017593953701040noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-87168682766359775332012-07-31T06:50:47.761-07:002012-07-31T06:50:47.761-07:00Sorry, I forgot to mention we have already purchas...Sorry, I forgot to mention we have already purchased two Switches for iscsiTCnoreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-130946208327340542012-07-31T05:57:03.194-07:002012-07-31T05:57:03.194-07:00Hi TC,
The easiest way for sure is to plug the 3 h...Hi TC,<br />The easiest way for sure is to plug the 3 hosts directly into the MD3200i. Assuming 2 NICs for iSCSI on each host and a dual controller quad-port iSCSI MD3200i. Plug host 1 into port 0 on both controllers, host 2 into port 1 on both controllers, etc. Saves on switch ports and halves the number of cables used.<br />Cheers!Carsonokhttps://www.blogger.com/profile/05717017593953701040noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-21718047218979966092012-07-31T05:25:38.204-07:002012-07-31T05:25:38.204-07:00HI,
How would you configure this setuo with 3 Hos...HI,<br /><br />How would you configure this setuo with 3 Hosts, ThanksTCnoreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-5511400493537874542012-04-16T09:47:05.589-07:002012-04-16T09:47:05.589-07:00Thanks for the help, I think I have a better under...Thanks for the help, I think I have a better understanding of what's going on now. If I understand correctly, the cabling for the VM hosts remains the same as it is now, 1 cable to each SAN switch, and I'm just alternating the subnets being used on the iSCSI vmkernel ports to get rudimentary balancing across the 4 subnets on the MD unit, correct? In my environment, the switches don't have interconnects on the iSCSI VLAN, specifically because I wanted to make sure that everything was being set up correctly so that one switch going down didn't kill every path to a target. <br /><br />(BTW, Dell's diagrams on this would be much nicer if their cabling illustrations were consistent. I spent probably half an hour trying to tell that this is what I think they're doing in the deployment guide. Grr.)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-26260086465430523252012-04-14T12:34:10.897-07:002012-04-14T12:34:10.897-07:00Hi Anonymous,
Yes, I am watching the comments - a...Hi Anonymous,<br /><br />Yes, I am watching the comments - automatically get emailed whenever a new comment is published.<br /><br />On the first point, you have 4 iSCSI subnets, so you could configure host A in subnets 1 & 2, and host B in subnets 3 & 4. The ports on the MD32000 are not wasted in that way but shared between the hosts. Also remember that you will have 2 IPs in each subnet (1 IP per subnet per controller) but one path will be active and the other standby. Recommend checking the Dell documentation as it explains the reasoning behind it much better and with diagrams too (there is no need for iSCSI traffic to traverse any switch interconnect if configured correctly.)<br /><br />On the second point, the SCSI locking mainly occurs when a thin-provisioned server needs to be grown, or when a server is in snapshot mode and the delta needs to grown. It is indeed improved in VMFS5. As a very general rule of thumb, try to maintain datastores with no more than 10 VMs per datastore.<br /><br />Hope that helps. Cheers!Carsonokhttps://www.blogger.com/profile/05717017593953701040noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-51822141885780434512012-04-13T09:51:50.686-07:002012-04-13T09:51:50.686-07:00Hopefully you're still watching this post. We...Hopefully you're still watching this post. We have an MD3200i on the way for our VM storage (currently using NexentaStor iSCSI, which is a bit flaky). Our infrastructure has two switches, one subnet per switch, so each host has 2 iSCSI ports, and the server hosting storage has 2 as well. With the MD3200i having 8 total ports, it's easy to see using 2 ports on each controller, with one to each subnet. What I don't understand is how/if it's possible to use the remaining 4 ports in a meaningful way (without adding more VLANs and physical NICs to each host). Is this possible, or are we just going to be using half the ports unless we add more subnets/NICs?<br /><br />Also, on a bit of a tangent, I'm trying to figure out LUN sizing with ESXi 5 on the MD3200i. The array will be one large virtual disk for RAID purposes, and there are about 100 VMs, mostly web servers. I know that the locking and contention issues have been improved, but I haven't seen a source that tells me what operations still cause these issues. Obviously I don't want to create one huge LUN/VMFS that has terrible performance, but I also don't want to have 30 small LUNs that I have to manage. Any advice on that?<br /><br />Thanks!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-28556988233426561042012-01-25T00:36:57.434-08:002012-01-25T00:36:57.434-08:00Hello Anonymous, it all depends what you want to d...Hello Anonymous, it all depends what you want to do with the MD3200i. If you are using it as iSCSI storage for virtual machines, I would recommend a 10 disk RAID 6 with two hot spares as this offers a high level of resilience, or a 12 disk RAID 6 is you cannot afford to lose two disks as hot spares. When you have your RAID setup in place, you can create LUNs of the desired size for whatever intended purpose. Cheers!Carsonokhttps://www.blogger.com/profile/05717017593953701040noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-22347995224772431912012-01-24T14:54:34.451-08:002012-01-24T14:54:34.451-08:00how did you cut up the hard disks? would you creat...how did you cut up the hard disks? would you create just one disk group using RAID 5? And then one quorum volume and one CSV volume?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-59442056006318444602012-01-21T08:47:42.371-08:002012-01-21T08:47:42.371-08:00It is perfectly okay to configure 4 iSCSI NICs per...It is perfectly okay to configure 4 iSCSI NICs per host server across the 4 iSCSI subnets (which I have done in the past.) For most circumstances, the throughput afforded with 2-way MPIO is sufficient; but if the project demands 4-way MPIO, and the prerequisite host NICs and switch ports are available, then we must configure the 4-way MPIO. Dell's installation guide used a 2-way MPIO configuration. Cheers!Carsonokhttps://www.blogger.com/profile/05717017593953701040noreply@blogger.comtag:blogger.com,1999:blog-4270346497183643494.post-32558544863470936022012-01-20T20:33:16.842-08:002012-01-20T20:33:16.842-08:00why not configure 4 nics per server with all 4 iS...why not configure 4 nics per server with all 4 iSCSI subnets?<br /><br />Is it not needed?Anonymousnoreply@blogger.com