How many HBA's per server?

We are deploying a UCS 5108 with 8 blades. We are going to boot from SAN. I already have to HBA's configured on the service profile. Do I need to add additional HBA's to the service profile for the datastore when ESX is installed?

Hello,
Please check the mentioned link. I hope it will help.
http://www.cisco.com/en/US/prod/collateral/modules/ps10277/ps12377/data_sheet_c78-699459.html

Similar Messages

How many licence for Windows Server 2012R2 in hyper-v cluster base on free Hyper-V Server 2012R2

Hi
I build cluster consist 4 nodes (2 procesors, 4 core per procesor=8 virtual processors per node). I installed free Hyper-V Server 2012 R2 on each node and created cluster.
I've got one Windows Server 2012 R2 Standard. How many VMs (with Windows Server 2012 R2 Standrard as OS) can I run on this cluster using this DVD? 1, 2 or none?
Thank you in advance
Tomasz
Kind Regards Tomasz

The detail here is this:
You are asking about the 'virtual instance granting' license.
- this only applies if Windows Server is installed on the bare metal with the Hyper-V Role added. (regardless of the edition)
- this only applies to licensing, it does not limit the number of VMs that you can run.
- If there is a cluster, all nodes should be the same edition to remove any licensing ambiguity.
This is strictly OS licensing for the VMs and has absolutely nothing to do with how many VMs you can run:
Most likely your hardware will run out of physical resources before you reach the maximums outlined here:
http://technet.microsoft.com/en-us/library/jj680093.aspx
If you have a cluster - there can be a maximum of 8,000 running VMs
If you have individual Hyper-V Servers there can be a maximum of 1,024 running VMs
Do the math - you would need a minimum of ~8 cluster nodes to touch that 8,000 number. But as you add nodes, you don't add HA VM capacity. But you can run a combination of HA and non-HA VMs up to a the maximum of 1,024 running VMs per node.
In other words, mix and match if you want to push the boundary.
Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.

How many DAQ tasks per loop?

Hi to everybody, I hope anybody can help me with the next case:
I am working on a system in which I have to read signals of 5 different sensors which have different ways to communicate (4 - 20 mA, voltage, RS-232, ModBUS, etc.) with the DAQ Device (cDAQ in my case), at same time when I am reading the variables I must check for the state of several digital inputs to verify connections and if any is interrupt I must stop the Data Acquisition.
My question is if is recommendable to put all the tasks in a single loop with the logic shown in the attached image.
Or if I should divide the tasks in a multiple loop architecture.
If the answer is the second, my next question is: How many DAQ tasks per loop is OK?, my doubt is based on the number of variables that I am going to read
and the different ways to get the measures, specially which are by protocols (ModBUS, RS-232), all this by the response time.
Thanks in advance, all suggestions are welcome!

I would recommend using a loop just for control and UI events. It should only have an event structure. Don't use the timeout case, since that just turns the system into a polling. Use Queues to send data from the controller loop to your other loops and User Events to send data back to the controller looop.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines

How many versions of MySQL Server Standard edition have there been?

I need to know how many versions of MySQL Server Standard edition there has been?

I need to know how many versions of MySQL Server Standard edition there has been?
Do you really mean MySQL? Or maybe MS SQL Server? If it's the last, then have a look at:
http://sqlserverbuilds.blogspot.de/
Olaf Helper
[ Blog] [ Xing] [ MVP]

How many users one EJB server can handle?

How many concurrent users can be served by one EJB server? After which point claster of servers should be created?
I know that it depends on application, but can someone estimate some rough average?
Real numbers from working application are very welcome.

Specify the application server name, people would help if you tell the app server name.

Q: How many Users do you serve w. your OES11-Infrastructure?

Reason for this - at first glance - stupid- question is the following:
We migrated (or Novell forced us to) from our low power (two HL DL360 G3 and 2 DL360 g4 one G5) 6.5 Cluster to a very juicy (6xDL360 G8, tons of proccessors) OES 11 cluster. We serve
approx. 1600 - 1700 Clients. Today everything stopped some of the Cluster Nodes didn't respond. This never happend in our old Cluster!
The reason was or IS by "Enterprise" Design:
DMESG: ipv4: Neighbour table overflow. !!!! Are we the only ones in the (small Novell) World who serves more than 1000 Clients???? WHY is there a limitation in the IP Cluster stack???
Did one EVER tested that. Should we better migrate to M$???
ip neigh show | wc -l --> shows 1021 entrys
sysctl net.ipv4.neigh.default.gc_thresh3
net.ipv4.neigh.default.gc_thresh3 = 1024
Means one cluster Node can handle 1024 connections. What if on one Node runs the DNS server? Only 1020 of 1600 Clients get an answer! Cool enterprise solution boys!
VERY angry!

On 03/25/2014 04:56 AM, jottschi wrote:
>
> Reason for this - at first glance - stupid- question is the following:
> We migrated (or Novell forced us to) from our low power (two HL DL360 G3
> and 2 DL360 g4 one G5) 6.5 Cluster to a very juicy (6xDL360 G8, tons of
> proccessors) OES 11 cluster. We serve
> approx. 1600 - 1700 Clients. Today everything stopped some of the
> Cluster Nodes didn't respond. This never happend in our old Cluster!
> The reason was or IS by "Enterprise" Design:
> DMESG: ipv4: Neighbour table overflow. !!!! Are we the only ones in the
> (small Novell) World who serves more than 1000 Clients???? WHY is there
> a limitation in the IP Cluster stack???
I'm sorry to hear about the lack of availability of the cluster nodes. I
am sure it is frustrating to have a system configured to be
highly-reliable (via clustering) to fail due to default settings. With
that said, this is a default Linux setting, and you're welcome to change it.
> Did one EVER tested that. Should we better migrate to M$???
I do not understand what you're asking.... did anybody test this on large
broadcast domains?
> ip neigh show | wc -l --> shows 1021 entrys
Wow, well that's quite a few. I think this number indicates something you
do not realize, though. While something like 'ss' or 'netstat' will tell
you how many layer three (IP) or four (TCP/UDP) connections your system
has, that number is not reflected by 'ip neigh', so usually the number of
clients your system has is limited in the list of neighbors by quite a
bit. For example, if I make a connection on my laptop (openSUSE, but same
default for my neighboring table) to Google, I can see that I have a fair
number of network connections total as shown:
Code:
me@mybox:~/Desktop> /usr/sbin/ss -planeto | grep -c ESTAB
61
but that's only tangentially related to the number of neighbors my laptop
sees:
Code:
me@mybox:~/Desktop> ip neigh
192.168.1.20 dev eth0 lladdr 00:1d:09:03:54:02 STALE
192.168.1.254 dev eth0 lladdr 00:1e:2a:74:66:35 STALE
192.168.1.1 dev eth0 lladdr f8:8f:ca:40:7a:1c REACHABLE
192.168.255.50 dev br8 lladdr ac:d3:58:ae:8e:ac STALE
How can that be? I have at least eight connections to unique remote
machines, so shouldn't I have at least eight listings in 'ip neigh'
output? The answer, of course, is 'no' because what you see from 'ip
neigh' are the cached addresses found via ARP, and ARP only matters within
the current broadcast domain, meaning on your local network before you hit
any routers. Even though I'm connected out to eight machines, all my
local routing table needs to care about (despite being VPN'd to a few
places and therefore having a few extra networks considered semi-local)
are the server, router, another router, and printer. Also, this number,
as you can see above, has entries become stale pretty quickly. I think
that time period is, again by default, something like thirty seconds,
since there is no guarantee from one second to the next that a given
server, workstation, or other node on the local network will still be
there. After something is stale the system just uses ARP again to see
what's still out there.
> sysctl net.ipv4.neigh.default.gc_thresh3
> net.ipv4.neigh.default.gc_thresh3 = 1024
Yes, this is a default for the Linux kernel in general. You're welcome to
tune it using sysctl, or probably via Yast so that it is stored to be used
after rebooting (and for the nice simple UI, if you're into that kind of
thing).
> Means one cluster Node can handle 1024 connections. What if on one Node
> runs the DNS server? Only 1020 of 1600 Clients get an answer! Cool
> enterprise solution boys!
No, it means that a given box, by default, can handle 1024 connections
from the local network. A typical Class C network, for example, only has
254 possible nodes, so only 253 connections. I've seen enterprises do
some supernetting to get things like 1022 nodes possible in a network, and
sometimes even fill that, but that's it. I have been on networks that had
addresses handed out from a Class B-like range (172.16.x.x) or even a
class A range (10.x.x.x) but those networks never had 65k or 10M boxes on
them because when you get too far beyond a thousand nodes you typically
suffer a bit of slowness. In your case you not only have more than 1024
nodes, but all of them are talking to the same server at the same time on
that same network.
Can Linux handle more? Sure, you're dealing with the same OS that runs
most supercomputers in the world, many of them being large clusters of
computers all working together in a single network, so obviously the
potential is there; however, there are reasons that one does not allow the
kernel to chew up all memory for a setting like "how many neighbors do you
have cached right now" when, for 99.9999% of the world, that max number
is around 200 since this specifically deals with neighbors on the same
segment or broadcast domain, not neighbors meaning anything reachable via
IP. Doing otherwise, for example setting it to 1,000,000, means that
somebody who was clever could more-easily waste your system's memory via a
denial of service (DoS) attack by flooding the network with bogus ARP
entries. Every one takes some memory, and every one needs to be managed
by the kernel until it is expired and removed, and again those networks
needing more than 1024 to be remembered within any single thirty-second
period are pretty rare. Your network must be pretty awesome to handle
that number of concurrent systems in the same logical network without
degradation.
Regarding running a DNS server, that is a good possibility as a service
that would experience this problem assuming all of the clients were on the
same network as the DNS server itself. While possible, the number of
networks where I've seen that has been pretty small overall since usually
those machines (servers) end up in a DMZ somewhere to prevent
unauthorized, or at least unaudited, access.
> VERY angry!
You're right in that this limitation should be documented, and made quite
obvious wherever it is documented. The migration guide would make sense,
as that would be a place where a lot of assumptions about defaults would
be questioned due to the OS change. If you have a specific page in the
documentation where you read through and expected limitations to be called
out, please either submit feedback, perhaps linking to this thread to
provide the background that you experienced, or post a link here an I'll
do the same.
If there are any other defaults that you feel should be changed,
particularly for your environment, sharing those may help as well.
In the meantime, you can change your current settings by running the
following as 'root' if you have not done so already:
Code:
cp /etc/sysctl.conf /etc/sysctl.conf-`date +%s`
cat << EOM >> /etc/sysctl.conf
# Setup higher threshold for arp
net.ipv4.neigh.default.gc_thresh3 = 4096
net.ipv4.neigh.default.gc_thresh2 = 2048
net.ipv4.neigh.default.gc_thresh1 = 1024
EOM
To apply the changes either run 'sysctl -p' (from memory I think that's
the right command) or else reboot the node, then perform again on other nodes.
Good luck.
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Need FM/BAPI to get how many line items per given FI document...

Hello Experts,
IS there an available FM or BAPI to get how many line items there is for a given
FI document? We are avoinding BSEG because of the performance.
Hope you can help me guys. Thank you and take care!

Hi,
Not sure if there is a specific FMs or BAPIs whose specific purpose is to just count FI document lines. But you can use a number of FMs to read an FI document.
i.e. FI_DOCUMENT_READ - pass the document keys (BUKRS, BELNR, GJAHR) and retrieve the T_BSEG table to get the document lines. Then you can just use DESCRIBE statement to get the number of lines in T_BSEG.
Also, based on experience, I never had any problems with BSEG as long as I am providing the complete keys for an FI document (BUKRS, BELNR, GJAHR). But if you are trying to avoid BSEG, you can use the secondary index tables like BSIS , BSAS, BSAD, BSID, BSIK, BSAK to improve performance.
Regards,
Oscean Tortona

How many iPhones stolen per day? Prevent shutdown.

Dear friends.
Since I had my iPhone stolen I'm searching for a way (without jailbreaking it) to prevent that my new iPhone gets lost.
"Find my iPhone" is only useful when the thief is dum.b as hel.l and when nobody has found it (yet).
Does Apple see comercial advantages on this situation? How many iPhones are stolen a day?!
I mean, why in the world wouldn't you develop security apps and security features so we don't lose our beloved phones?
This is serious, and it seems Apple doesn't care. I don't want to jailbreak my iPhone, but you are not helping, Apple!
I would like to see a Restriction setting that would block the shutdown of my iPhone when it's locked. It would require a passcode to shut it down. It's so simple!
This way thieves wouldn't be able to shut it down!
The same works for Airplane mode and Wi-Fi. A passcode should be required to turn it off (if I enable this feature).
Advanced considerations: DFU mode and recovery mode should "expire", the iPhone should reset itself after some time (e.g. 10 minutes) so the iPhone would come back to life and allow tracking.
SECURITY!
So far nothing was done in this area. I believe Apple should pay more attention to this.
Best regards,
Will

Will Segatto wrote:
Dear friends.
Since I had my iPhone stolen I'm searching for a way (without jailbreaking it) to prevent that my new iPhone gets lost.
"Find my iPhone" is only useful when the thief is dum.b as hel.l and when nobody has found it (yet).
Does Apple see comercial advantages on this situation? How many iPhones are stolen a day?!
I mean, why in the world wouldn't you develop security apps and security features so we don't lose our beloved phones?
This is serious, and it seems Apple doesn't care. I don't want to jailbreak my iPhone, but you are not helping, Apple!
I would like to see a Restriction setting that would block the shutdown of my iPhone when it's locked. It would require a passcode to shut it down. It's so simple!
This way thieves wouldn't be able to shut it down!
The same works for Airplane mode and Wi-Fi. A passcode should be required to turn it off (if I enable this feature).
Advanced considerations: DFU mode and recovery mode should "expire", the iPhone should reset itself after some time (e.g. 10 minutes) so the iPhone would come back to life and allow tracking.
SECURITY!
So far nothing was done in this area. I believe Apple should pay more attention to this.
Best regards,
Will
Sorry requiring a passcode to shut down the phone isn't a good idea.
do you know how many users forget their 4 digit passcode to unlock their phones - use the search function at the top right and you'll see all the threads.

How Many MB/GB per Minute of Video?

I'm trying to decide which iPhone 5S to purchase 32gb or 64gb. Since there's been a few more improvements, since the 4S, I'll be depending on this more to shoot videos of my kids while vacationing, sports, etc. with maybe no place to upload.
Is there a standard, for this quality of video, of how many MB or GB it equals to in minutes and/or hours?
Thanks

Hi(Bonjour)!
See user's manual (help menu) at page 180:
*DV-format video*
30 sec. 1 min. 5 min. 10 min. 30 min. 60 min.
108 MB 216 MB 1.08 GB 2.16 GB 6.5 GB 13 GB
*Apple Intermediate Codec*
*HDV 720p30*
30 sec. 1 min. 5 min. 10 min. 30 min. 60 min.
210 MB 420 MB 2.05 GB 4.10 GB 12.30 GB 24.61 GB
*HDV 1080i50*
30 sec. 1 min. 5 min. 10 min. 30 min. 60 min.
360 MB 720 MB 3.52 GB 7.03 GB 21.11 GB 42.19 GB
*HDV 1080i60*
30 sec. 1 min. 5 min. 10 min. 30 min. 60 min.
420 MB 840 MB 4.10 GB 8.20 GB 24.61 GB 49.22 GB
Michel Boissonneault

How many Meraki APs per subnet/vlan

I am trying to cover a 90-story building. Voice is not a requirement, but I would like to be able to seamlessly roam across the infrastructure. How large can I build a flat network, and if I need to cross a threshold, what do I have to do to enable Layer 3 roaming?

The only reason I can thing of why that "soft limit" of 60 Cisco AP's per VLAN exists is the default logging configuration of the AP's. This is the broadcast address so every other AP receives all those messages also, once you configure an syslog destination that is no longer the case. I don't have much experience with Meraki, but I think that they don't work with an external syslog server at all.
I hope that all the other devices are being segment it on a per floor basis? If not, please investigate if you can segment at least some floors together with there own set of "local" VLAN's. You don't want network traffic being switched in "global" VLAN's all throughout the building on a scale like that.

How many external drives per Firewire 800 bus?

I am the proud owner of a new Mac Pro, which comes with only one FW 800 bus. I have 4 1T G-Tech FW drives (2 for video media) that I've daisy-chained, and I know their performance is suffering because of it. I'd like to remedy that.
Question 1: Is it optimal to have only one of these drives running on each bus? Can I get away with two per bus without serious loss of efficiency? Can I assume that 2 per will run better than 4 per?
Question 2: For the price that OWC is selling the Sonnet Tango 800 PCI-E card (about $110), is there another card I should be considering, or is the Tango 800 considered good?
Thanks.
Giraut

giraut wrote:
videocrafter,
not to presume on your time more than i already have -- what a helpful reply you gave. thanks! -- but i just want to make absolutely sure of one thing:
i buy the esata pci-e card you mention from OWC and install it myself (probably pretty easy) and then just plug my G-Tech drives into it, and I'm good to go? No separate esata controller card? I just realized that only two of my four G-Tech drives have the esata connection, so I could plug those two in, leave the other two with my FW 800 connection and save up for a couple more G-Tech drives with the esata connection. And this will make my life better.
Correct?
many, many thanks.
giraut
Hi giraut, your welcome
That is correct, you will not need any additional controller card. You will have to install the driver for the Tempo E4P (make sure you follow the installation instructions) and you'll want to make sure you download the latest driver from Sonnet's website:
http://www.sonnettech.com/support/kb/kb.php?cat=338#position_content
and unless you have some application monitoring for new upgrades, I would check at least once a month if not more often for any new future drivers. They are suppose to be coming out with one here soon to support 64 Bit. Even though FCP does not yet support 64 bit if you choose to run other applications in 64 bit you don't want your eSATA controller to cause any problems.
You'll also need One external shielded eSATA data cables with "I-Shape" connectors for each device you connect to the card. So in your case, you'll need 2 right away. Here is the type of cable you need, it just happens to be made by Sonnet, but you can find cheaper ones (just remember, you get what you pay for).
http://eshop.macsales.com/item/Sonnet%20Technology/TCBSATA11/
There is one bit of insight I would like to give you when swapping any of your internal drives around once you have this card installed. It probably tells you in the owners manual, and I just stopped reading once I got it up and running. However I found out the hard way. The first time that I swapped out one of the "Internal" drives (I swapped out the drive in bay 3 I think it was, makes no difference which bay I'm sure) but I simply shut down my system, unplugged the computer and swapped out the drive. When I started back up, I things didn't' seem right, it wasn't seeing my external drives properly and I got a panic attack (both the computer and me!). Of course my first thought was "YOU'VE GOT TO BE FREAKING KIDDING ME!" So after I took a deep breath, before turning the computer back on, I disconnected my external enclosure, then restarted and everything was find. I then completely shut down, turned on my enclosure and restarted. All was good. I tested my theory again and swapped out another internal drive and all went like clockwork. Here are the exact steps I took. They worked for me, and maybe they will work for someone else, so I'll list them here:
Swapping Internal Drive
1. Eject each external drive from the enclosure and power down the enclosure.
2. Eject and power down the FireWire drive.
3. Power down the computer and swap out drives.
4. With the external enclosures powered off, power up the computer as normal.
5. Accomplish another shut-down.
6. Make sure all of the drives are installed into the enclosure, turn on the power.
7. Power up the computer and keep your fingers crossed.
Personally I've never daisy-chained Firewire drives (although I find it fascinating that Patrick had 19 of them daisy-chained) if I did I would probably only use them for archiving since I capture and edit everything in ProRes 422, but that's another thread. I currently only have one device that I use via firewire 800 which is my external Blu-ray burner. An interesting note here. I initially had my Blu-ray burner connected to my former piece of junk eSata controller card (with the Silicon Image SiI3124 chip and drivers that haven't been updated since before Leopard came out) but for whatever reason, the Tempo E4P wasn't seeing it (Now I'm not sure why, and frankly I didn't take the time to troubleshoot it, so it may be nothing) I just went ahead and connected the burner up as Firewire 800, and connected my 3rd external eSata device (a OWC Mercury Elite Pro USB/Firewire/eSata drive) to port 2 of my Tempo E4P, with my 5 drive bay FirmTek/5PM eSata enclosure connected to port 1 of the E4P (leaving 2 open ports on the E4P).
So, If I were you, for now I would go ahead and daisy-chain those other 2 Firewire drives, unless I needed to use them to capture and edit in anything other than DV, or for archiving only. Otherwise, I would get another 5 bay enclosure and take those 2 SATA drives out of those 2 existing firewire enclosures (Im assuming they are SATA drives inside their enclosure, I would surely think so) and put them in the external eSata enclosure.
One last ti-bit of information that may or may not be useful. When you get an external 5 bay enclosure with the port Multiplier, pay a little extra for a brand that you can trust. Personally, since I already have one, I would stick with the SeriTek SATA5PM (their built like a tank!), or go with a Sonnet, OWC has a new price on their Fusion D500P that's pretty appealing. I would definitely be cautious if wanting to purchase anything for a specific company with the word "Cool" in their name, the only thing that is cool, and it's only cool for them is they get your money and you get .... well you know!
http://eshop.macsales.com/item/Firmtek/SATA5PM/
http://eshop.macsales.com/item/Sonnet%20Technology/FUSD5P00TBR/
Just in case anyone is wondering, I get no compensation in any fashion for any of the items that I have specifically linked to in this post. These items are simply ones that I have carefully done my homework on, and if it can save someone else a little time by helping them with their homework, then that makes me feel good. I'm all for helping others save time, it's the most precious resource we have.
Message was edited by: videocrafter

How many databases on one server

I am trying to find out what a "best practice" is for sizing a server. We currently have an IBM P650 64GBmem and 8 CPU's (1.1ghz).
We run 34 Oracle Databases on this server (it is production). It is a mix of transactional databases and databases that are loaded via batch (sqlloader or some very long running pl/sql) ..
We are looking at a new P570, 5 CPU's 64gb mem. It is supposedly a faster machine. The intent is to keep the same number of production databases on it.
We have sporadic performaces issues ..
Is this type of configuration the norm .. Most database people prefer fewer databases on one server ? I am looking for opinions on this subject ..
thanks in advance ..

We have sporadic performaces issues ..
Why? Do you lack CPU Power or is it because your IO System is to slow? It may also be possible, that a application kills you - do you know why you have performaces issues?
We run 34 Oracle Databases on this server (it is production).
Is it possible to combine some databases (perhaps all OLTP and all OLAP Instances)into less datebase and only use different schemas? It's easier to maintain, less overhead for all the instances etc etc.
We are looking at a new P570, 5 CPU's 64gb
Did you already thing about physicaly partition this maschine? We are using Solaris 10 on various Sun Server and on one big sever 3,4 or 5 Solaris Container are running.
Dim

Re: How many amps/watts per header on Z77a-G45?

What about the pump in addition to those two fans though?
The H80i GT only has a 3-pin connector to power the entire unit (or I'd use molex/SATA for power)

Quote from: jamielampert on Today at 17:29:39I got the same message on the same model computer. I was told that if you update to win10 you need to go to msi.com and download and install the win10 drivers for that...

How many sql server express instances i can install maximum in single system

Hello Team,
I want to install multiple sql express instances in single machine. My question is that how many instances of sql server express editions i can install in single machine ?
Thanks,
Udaya Kumar
udaya kumar

For practical reasons as much as you like you probably would not exceed in any case 10 instances because after that resource crunch would start but any how you can read Max specification for SQL Server
More accurate answer is "50 instances on a stand-alone server for all SQL Server editions."
https://msdn.microsoft.com/en-us/library/ms143432.aspx
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it
My Technet Wiki Article
MVP

How many max connections opened do you have?

Hello!
I've read so many answers to these questions that, i don't really know what is the correct one. So, i would like to know what do you have. Here they are:
1- How many max connections per torrent do you have set up?
2- How many max opened connections do you have in mldonkey (or similar)?
Thanks!
Last edited by dienadel (2007-03-08 08:25:36)

AFAIK it's arround (total connections):
- <5 for RTC
- <100 for slow ADSL
- <500 for medium ADSL
- ~1000 for high-speed ADSL (and max on Windows lol) ; went up to over 1500, without positive change.
I use rtorrent & have a limit of <100 connections per torrent (4 leechers max per torrent so they get something)

How many HBA's per server?

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