Poor performance with small files on Xsan volume
Since I'm running on Xsan for with network users and server shares, I have various problems.
Users complaining on slow logins, Word files that have saving errors. For the Word problem, there are a lot tricks like .TemporaryItems with acl.
But I think there's another reason. My mobile home users are not yet using the new home server with mobile homes. Today I migrated my own account to the new server en syncing is very slow on files from my iCal server and mail archive.
So I did a test on the servers that are connected to the san. The backup servers has the san volume mounted and some old Xraids for backup storage. If I duplicate my iCal folder (8000 files) it takes 8 minutes in the Xsan volume. On an Xraid, less than 30 seconds. If I duplicate 1 2.5GB diskimage file on the san volume, it does it in less than 10 seconds.
My Xsan setup:
All Intel Xserves
1 MD server dedicated (4GB Atto FC)
1 OD server and server shares (and backup MD controller) (4GB Atto FC)
1 home folder server (4GB Atto FC)
1 backup server (also MD backup controller) (4GB Apple FC card)
2 Promise Vtraks with 16X 750 GB disks
1 MD lun (2disks mirrored) (Own FC controller)
2 Data luns (8.87 TB each lun) (Each own FC controller)
Xsan setup is done with configuration for home directories.
Block allocation size: 8kb Round Robin
Separate ethernet metadata network.
I hope someone can give me some pointers.
Patrick
I have the same issue and it is killing our iCal Server performance.
My question would be, can you edit an XSAN Volume without destroying the data?
There is one setting that I think might ease the pressure... in the Cache Settings (Volumes -> <Right-Click Volume> -> Edit Volume Settings)
Would increasing the amount of Cache help? Would it destroy the data?!?!?
Similar Messages
-
Airdisk Performance with small files
I was curious if anyone else it noticing the unique performance issues I am.
I am using a LaCie hardware 1.0TB Raid5 Array: http://www.lacie.com/us/products/product.htm?pid=10326
It shows up properly, however the setup appears to create new files very slowly. If I transfer a large file (movie/mp3/etc) performance is fine, however if it literally takes 5+ seconds to create a new file. On a large file... this isn't a big deal, however it makes transfer a .app (which contains several files) or documents performance go very slow.
None of this occurs with the drive attach locally.
Has anyone else seen this?I have the same issue and it is killing our iCal Server performance.
My question would be, can you edit an XSAN Volume without destroying the data?
There is one setting that I think might ease the pressure... in the Cache Settings (Volumes -> <Right-Click Volume> -> Edit Volume Settings)
Would increasing the amount of Cache help? Would it destroy the data?!?!? -
Poor Performance with Fairpoint DSL
I started using Verizon DSL for my internet connection and had no problems. When Fairpoint Communications purchased Verizon (this is in Vermont), they took over the DSL (about May 2009). Since then, I have had very poor performance with all applications as soon as I start a browser. The performance problems occur regardless of the browser - I've tried Firefox (3.5.4), Safari (4.0.3) and Opera (10.0). I've been around and around with Fairpoint for 6 months with no resolution. I have not changed any software or hardware on my Mac during that time, except for updating the browsers and Apple updates to the OS, iTunes, etc. The performance problems continued right through these updates. I've run tests to check my internet speed and get times of 2.76Mbps (download) and 0.58Mbps (upload) which are within the specified limits for the DSL service. My Mac is a 2GHz PowerPC G5 runnning OSX 10.4.11. It has 512MB DDR SDRAM. I use a Westell Model 6100 modem for the DSL provided by Verizon.
Some of the specific problems I see are:
1. very long waits of more than a minute after a click on an item in the menu bar
2. very long waits of more than two minutes after a click on an item on a browser page
3. frequent pinwheels in response to a click on a menu item/browser page item
4. frequent pinwheels if I just move the mouse without a click
5. frequent messages for stopped/unresponsive scripts
6. videos (like YouTube) stop frequently for no reason; after several minutes, I'll get a little audio but no new video; eventually after several more minutes it will get going again (both video and audio)
7. response in non-browser applications is also very slow
8. sometimes will get no response at all to a mouse click
9. trying to run more than one browser at a time will bring the Mac to its knees
10. browser pages frequently take several minutes to load
These are just some of the problems I have.
These problems all go away and everything runs fine as soon as I stop the browser. If I start the browser, they immediately surface again. I've trying clearing the cache, etc with no improvements.
What I would like to do is find a way to determine if the problem is in my Mac or with the Fairpoint service. Since I had no problems with Verizon and have made no changes to my Mac, I really suspect the problem lies with Fairpoint. Can anyone help me out? Thanks.1) Another thing that you could try it is deleting the preference files for networking. Mac OS will regenerate these files. You would then need to reconfigure your network settings.
The list of files comes from Mac OS X 10.4.
http://discussions.apple.com/message.jspa?messageID=8185915#8185915
http://discussions.apple.com/message.jspa?messageID=10718694#10718694
2) I think it is time to do a clean install of your system.
3) It's either the software or an intermittent hardware problem.
If money isn't an issue, I suggest an external harddrive for re-installing Mac OS.
You need an external Firewire drive to boot a PowerPC Mac computer.
I recommend you do a google search on any external harddrive you are looking at.
I bought a low cost external drive enclosure. When I started having trouble with it, I did a google search and found a lot of complaints about the drive enclosure. I ended up buying a new drive enclosure. On my second go around, I decided to buy a drive enclosure with a good history of working with Macs. The chip set seems to be the key ingredient. The Oxford line of chips seems to be good. I got the Oxford 911.
The latest the hard drive enclosures support the newer serial ata drives. The drive and closure that I list supports only older parallel ata.
Has everything interface:
FireWire 800/400 + USB2, + eSATA 'Quad Interface'
save a little money interface:
FireWire 400 + USB 2.0
This web page lists both external harddrive types. You may need to scroll to the right to see both.
http://eshop.macsales.com/shop/firewire/1394/USB/EliteAL/eSATAFW800_FW400USB
Here is an external hd enclosure.
http://eshop.macsales.com/item/Other%20World%20Computing/MEFW91UAL1K/
Here is what one contributor recommended:
http://discussions.apple.com/message.jspa?messageID=10452917#10452917
Folks in these Mac forums recommend LaCie, OWC or G-Tech.
Here is a list of recommended drives:
http://discussions.apple.com/thread.jspa?messageID=5564509#5564509
FireWire compared to USB. You will find that FireWire 400 is faster than USB 2.0 when used for a external harddrive connection.
http://en.wikipedia.org/wiki/UniversalSerial_Bus#USB_compared_toFireWire
http://www23.tomshardware.com/storageexternal.html -
Non jdriver poor performance with oracle cluster
Hi,
we decided to implement batch input and went from Weblogic Jdriver to Oracle Thin 9.2.0.6.
Our system are a Weblogic 6.1 cluster and an Oracle 8.1.7 cluster.
Problem is .. with the new Oracle drivers our actions on the webapp takes twice as long as with Jdriver. We also tried OCI .. same problem. We switched to a single Oracle 8.1.7 database .. and it worked again with all thick or thin drivers.
So .. new Oracle drivers with oracle cluster result in bad performance, but with Jdriver it works perfectly. Does sb. see some connection?
I mean .. it works with Jdriver .. so it cant be the database, huh? But we really tried with every JDBC possibility! In fact .. we need batch input. Advise is very appreciated =].
Thanx for help!!
Message was edited by mindchild at Jan 27, 2005 10:50 AM
Message was edited by mindchild at Jan 27, 2005 10:51 AMThx for quick replys. I forget to mention .. we also tried 10g v10.1.0.3 from instantclient yesterday.
I have to agree with Joe. It was really fast on the single machine database .. but we had same poor performance with cluster-db. It is frustrating. Specially if u consider that the Jdriver (which works perfectly in every combination) is 4 years old!
Ok .. we got this scenario, with our appPage CustomerOverview (intensiv db-loading) (sorry.. no real profiling, time is taken with pc watch) (Oracle is 8.1.7 OPS patch level1) ...
WL6.1_Cluster + Jdriver6.1 + DB_cluster => 4sec
WL6.1_Cluster + Jdriver6.1 + DB_single => 4sec
WL6.1_Cluster + Ora8.1.7 OCI + DB_single => 4sec
WL6.1_Cluster + Ora8.1.7 OCI + DB_cluster => 8-10sec
WL6.1_Cluster + Ora9.2.0.5/6 thin + DB_single => 4sec
WL6.1_Cluster + Ora9.2.0.5/6 thin + DB_cluster => 8sec
WL6.1_Cluster + Ora10.1.0.3 thin + DB_single => 2-4sec (awesome fast!!)
WL6.1_Cluster + Ora10.1.0.3 thin + DB_cluster => 6-8sec
Customers rough us up, because they cannot mass order via batch input. Any suggestions how to solve this issue is very appreciated.
TIA
>
>
Markus Schaeffer wrote:
Hi,
we decided to implement batch input and went fromWeblogic Jdriver to Oracle Thin 9.2.0.6.
Our system are an Weblogic 6.1 cluster and a Oracle8.1.7 cluster.
Problem is .. with the new Oracle drivers ouractions on the webapp takes twice as long
as with Jdriver. We also tried OCI .. same problem.We switched to a single Oracle 8.1.7
database .. and it worked again with all thick orthin drivers.
So .. new Oracle drivers with oracle cluster
result in bad performance, but with
Jdriver it works perfectly. Does sb. see someconnection?Odd. The jDriver is OCI-based, so it's something
else. I would try the latest
10g driver if it will work with your DBMS version.
It's much faster than any 9.X
thin driver.
Joe
I mean .. it works with Jdriver .. so it cant bethe database, huh? But we really
tried with every JDBC possibility!
Thanx for help!! -
Poor performance with SVM mirrored stripes
Problem: poor write performance with configuration included below. Before attaching striped subdevices to mirror, they write/read very fast (>20,000 kw/s according to iostat), but after mirror attachment and sync performance is <2,000 kw/s. I've got standard SVM-mirrored root disks that perform at > 20,000 kw/s, so something seems odd. Any help would be greatly appreciated.
Config follows:
Running 5.9 Generic_117171-17 on sun4u sparc SUNW,Sun-Fire-V890. Configuration is 4 72GB 10K disks with the following layout:
d0: Mirror
Submirror 0: d3
State: Okay
Submirror 1: d2
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 286607040 blocks (136 GB)
d3: Submirror of d0
State: Okay
Size: 286607040 blocks (136 GB)
Stripe 0: (interlace: 4096 blocks)
Device Start Block Dbase State Reloc Hot Spare
c1t4d0s0 0 No Okay Yes
c1t5d0s0 10176 No Okay Yes
d2: Submirror of d0
State: Okay
Size: 286607040 blocks (136 GB)
Stripe 0: (interlace: 4096 blocks)
Device Start Block Dbase State Reloc Hot Spare
c1t1d0s0 0 No Okay Yes
c1t2d0s0 10176 No Okay YesI have the same issue and it is killing our iCal Server performance.
My question would be, can you edit an XSAN Volume without destroying the data?
There is one setting that I think might ease the pressure... in the Cache Settings (Volumes -> <Right-Click Volume> -> Edit Volume Settings)
Would increasing the amount of Cache help? Would it destroy the data?!?!? -
Poor performance with WebI and BW hierarchy drill-down...
Hi
We are currently implementing a large HR solution with BW as backend
and WebI and Xcelcius as frontend. As part of this we are experiencing
very poor performance when doing drill-down in WebI on a BW hierarchy.
In general we are experiencing ok performance during selection of data
and traditional WebI filtering - however when using the BW hierarchy
for navigation within WebI, response times are significantly increasing.
The general solution setup are as follows:
1) Business Content version of the personnel administration
infoprovider - 0PA_C01. The Infoprovider contains 30.000 records
2) Multiprovider to act as semantic Data Mart layer in BW.
3) Bex Query to act as Data Mart Query and metadata exchange for BOE.
All key figure restrictions and calculations are done in this Data Mart
Query.
4) Traditionel BO OLAP universe 1:1 mapped to Bex Data Mart query. No
calculations etc. are done in the universe.
5) WebI report with limited objects included in the WebI query.
As we are aware that performance is an very subjective issues we have
created several case scenarios with different dataset sizes, various
filter criteria's and modeling techniques in BW.
Furthermore we have tried to apply various traditional BW performance
tuning techniques including aggregates, physical partitioning and pre-
calculation - all without any luck (pre-calculation doesn't seem to
work at all as WebI apparently isn't using the BW OLAP cache).
In general the best result we can get is with a completely stripped WebI report without any variables etc.
and a total dataset of 1000 records transferred to WebI. Even in this scenario we can't get
each navigational step (when using drill-down on Organizational Unit
hierarchy - 0ORGUNIT) to perform faster than minimum 15-20 seconds per.
navigational step.
That is each navigational step takes 15-20 seconds
with only 1000 records in the WebI cache when using drill-down on org.
unit hierachy !!.
Running the same Bex query from Bex Analyzer with a full dataset of
30.000 records on lowest level of detail returns a threshold of 1-2
seconds pr. navigational step thus eliminating that this should be a BW
modeling issue.
As our productive scenario obviously involves a far larger dataset as
well as separate data from CATS and PT infoproviders we are very
worried if we will ever be able to utilize hierarchy drill-down from
WebI ?.
The question is as such if there are any known performance issues
related to the use of BW hierarchy drill-down from WebI and if so are
there any ways to get around them ?.
As an alternative we are currently considering changing our reporting
strategy by creating several higher aggregated reports to avoid
hierarchy navigation at all. However we still need to support specific
division and their need to navigate the WebI dataset without
limitations which makes this issue critical.
Hope that you are able to help.
Thanks in advance
/Frank
Edited by: Mads Frank on Feb 1, 2010 9:41 PMHi Henry, thank you for your suggestions although i´m not agree with you that 20 seconds is pretty good for that navigation step. The same query executed with BEx Analyzer takes only 1-2 seconds to do the drill down.
Actions
suppress unassigned nodes in RSH1: Magic!! This was the main problem!!
tick use structure elements in RSRT: Done it.
enable query stripping in WebI: Done it.
upgrade your BW to SP09: Has the SP09 some inprovements in relation to this point ?
use more runtime query filters. : Not possible. Very simple query.
Others:
RSRT combination H-1-3-3-1 (Expand nodes/Permanent Cache BLOB)
Uncheck prelimirary Hierarchy presentation in Query. only selected.
Check "Use query drill" in webi properties.
Sorry for this mixed message but when i was answering i tryied what you suggest in relation with supress unassigned nodes and it works perfectly. This is what is cusing the bottleneck!! incredible...
Thanks a lot
J.Casas -
Poor performance with Oracle Spatial when spatial query invoked remotely
Is anyone aware of any problems with Oracle Spatial (10.2.0.4 with patches 6989483 and 7003151 on Red Hat Linux 4) which might explain why a spatial query (SDO_WITHIN_DISTANCE) would perform 20 times worse when it was invoked remotely from another computer (using SQLplus) vs. invoking the very same query from the database server itself (also using SQLplus)?
Does Oracle Spatial have any known problems with servers which use SAN disk storage? That is the primary difference between a server in which I see this poor performance and another server where the performance is fine.
Thank you in advance for any thoughts you might share.OK, that's clearer.
Are you sure it is the SQL inside the procedure that is causing the problem? To check, try extracting the SQL from inside the procedure and run it in SQLPLUS with
set autotrace on
set timing on
SELECT ....If the plans and performance are the same then it may be something inside the procedure itself.
Have you profiled the procedure? Here is an example of how to do it:
Prompt Firstly, create PL/SQL profiler table
@$ORACLE_HOME/rdbms/admin/proftab.sql
Prompt Secondly, use the profiler to gather stats on execution characteristics
DECLARE
l_run_num PLS_INTEGER := 1;
l_max_num PLS_INTEGER := 1;
v_geom mdsys.sdo_geometry := mdsys.sdo_geometry(2002,null,null,sdo_elem_info_array(1,2,1),sdo_ordinate_array(0,0,45,45,90,0,135,45,180,0,180,-45,45,-45,0,0));
BEGIN
dbms_output.put_line('Start Profiler Result = ' || DBMS_PROFILER.START_PROFILER(run_comment => 'PARALLEL PROFILE')); -- The comment name can be anything: here it is related to the Parallel procedure I am testing.
v_geom := Parallel(v_geom,10,0.05,1); -- Put your procedure call here
dbms_output.put_line('Stop Profiler Result = ' || DBMS_PROFILER.STOP_PROFILER );
END;
SHOW ERRORS
Prompt Finally, report activity
COLUMN runid FORMAT 99999
COLUMN run_comment FORMAT A40
SELECT runid || ',' || run_date || ',' || run_comment || ',' || run_total_time
FROM plsql_profiler_runs
ORDER BY runid;
COLUMN runid FORMAT 99999
COLUMN unit_number FORMAT 99999
COLUMN unit_type FORMAT A20
COLUMN unit_owner FORMAT A20
COLUMN text FORMAT A100
compute sum label 'Total_Time' of total_time on runid
break on runid skip 1
set linesize 200
SELECT u.runid || ',' ||
u.unit_name,
d.line#,
d.total_occur,
d.total_time,
text
FROM plsql_profiler_units u
JOIN plsql_profiler_data d ON u.runid = d.runid
AND
u.unit_number = d.unit_number
JOIN all_source als ON ( als.owner = 'CODESYS'
AND als.type = u.unit_type
AND als.name = u.unit_name
AND als.line = d.line# )
WHERE u.runid = (SELECT max(runid) FROM plsql_profiler_runs)
ORDER BY d.total_time desc;Run the profiler in both environments and see if you can see where the slowdown exists.
regards
Simon -
Poor Performance with Converged Fabrics
Hi Guys,
I'm having some serious performance issues with Converged Fabrics in my Windows Server 2012 R2 lab. I'm planning on creating a Hyper-V cluster with 3 nodes. I've built the first node, building and installing/configuring OS and Hyper-V pretty straight forward.
My issue is with Converged Fabrics, I'm absolutely getting very slow performance in the sense of managing the OS, Remote Desktop connections taking very long and eventually times out. Server unable to find a writable domain controller due to slow performance.
If I remove the converged fabric everything is awesome, works as expected. Please note that the cluster hasn't even been built yet and experiencing this poor performance.
Here is my server configuration:
OS: Windows Server 2012 R2
RAM: 64GB
Processor: Intel I7 Gen 3
NICS: 2 X Intel I350-T2 Adapters, supporting SRIOV/VMQ
Updates: All the latest updates applied
Storage:
Windows Server 2012 R2 Storage Spaces
Synology DS1813+
Updates: All the latest updates applied
Below is the script I've written to automate the entire process.
# Script: Configure Hyper-V
# Version: 1.0.2
# Description: Configures the Hyper-V Virtual Switch and
# Creates a Converged Fabric
# Version 1.0.0: Initial Script
# Version 1.0.1: Added the creation of SrIOV based VM Switches
# Version 1.0.2: Added parameters to give the NLB a name, as well as the Hyper-V Switch
param
[Parameter(Mandatory=$true)]
[string]$TeamAdapterName="",
[Parameter(Mandatory=$true)]
[string]$SwitchName="",
[Parameter(Mandatory=$true)]
[bool]$SrIOV=$false
#Variables
$CurrentDate = Get-Date -Format d
$LogPath = "C:\CreateConvergedNetworkLog.txt"
$ManagmentOSIPv4="10.150.250.5"
$ManagmentOS2IPv4="10.250.251.5"
#$CommanGatewayIPv4="10.10.11.254"
$ManagmentDNS1="10.150.250.1"
$ManagmentDNS2="10.150.250.3"
$ManagmentDNS3="10.250.251.1"
$ManagmentDNS4="10.250.251.3"
$ClusterIPv4="10.253.251.1"
$LiveMigrationIPv4="10.253.250.1"
$CSVIPv4="10.100.250.1"
$CSV2IPv4="10.250.100.1"
#Set Excution Policy
Write-Host "Setting policy settings..."
Set-ExecutionPolicy UnRestricted
try
# Get existing network adapters that are online
if($SrIOV)
#$sriov_adapters = Get-NetAdapterSriov | ? Status -eq Up | % Name # Get SRIOV Adapters
$adapters = Get-NetAdapterSriov | ? Status -eq Up | % Name # Get SRIOV Adapters
Enable-NetAdapterSriov $adapters # Enable SRIOV on the adapters
else
$adapters = Get-NetAdapterSriov | % Name
#$adapters = Get-NetAdapter | ? Status -eq Up | % Name
# Create NIC team
if ($adapters.length -gt 1)
Write-Host "$CurrentDate --> Creating NIC team $TeamAdapterName..."
Write-Output "$CurrentDate --> Creating NIC team $TeamAdapterName..." | Add-Content $LogPath
#New-NetLbfoTeam -Name "ConvergedNetTeam" -TeamMembers $adapters -Confirm:$false | Add-Content $LogPath
New-NetLbfoTeam -Name $TeamAdapterName -TeamMembers $adapters -TeamingMode SwitchIndependent -LoadBalancingAlgorithm Dynamic -Confirm:$false | Add-Content $LogPath
else
Write-Host "$CurrentDate --> Check to ensure that at least 2 NICs are available for teaming"
throw "$CurrentDate --> Check to ensure that at least 2 NICs are available for teaming" | Add-Content $LogPath
# Wait for team to come online for 60 seconds
Start-Sleep -s 60
if ((Get-NetLbfoTeam).Status -ne "Up")
Write-Host "$CurrentDate --> The ConvergedNetTeam NIC team is not online. Troubleshooting required"
throw "$CurrentDate --> The ConvergedNetTeam NIC team is not online. Troubleshooting required" | Add-Content $LogPath
# Create a new Virtual Switch
if($SrIOV) #SRIOV based VM Switch
Write-Host "$CurrentDate --> Configuring converged fabric $SwitchName with SRIOV..."
Write-Output "$CurrentDate --> Configuring converged fabric $SwitchName with SRIOV..." | Add-Content $LogPath
#New-VMSwitch "ConvergedNetSwitch" -MinimumBandwidthMode Weight -NetAdapterName "ConvergedNetTeam" -EnableIov $true -AllowManagementOS 0
New-VMSwitch $SwitchName -MinimumBandwidthMode Weight -NetAdapterName $TeamAdapterName -EnableIov $true -AllowManagementOS 0
$CreatedSwitch = $true
else #Standard VM Switch
Write-Host "$CurrentDate --> Configuring converged fabric $SwitchName..."
Write-Output "$CurrentDate --> Configuring converged fabric $SwitchName..." | Add-Content $LogPath
#New-VMSwitch "ConvergedNetSwitch"-MinimumBandwidthMode Weight -NetAdapterName "ConvergedNetTeam" -AllowManagementOS 0
New-VMSwitch $SwitchName -MinimumBandwidthMode Weight -NetAdapterName $TeamAdapterName -AllowManagementOS $false
$CreatedSwitch = $true
if($CreatedSwitch)
#Set Default QoS
Write-Host "$CurrentDate --> Setting default QoS policy on $SwitchName..."
Write-Output "$CurrentDate --> Setting default QoS policy $SwitchName..." | Add-Content $LogPath
#Set-VMSwitch "ConvergedNetSwitch"-DefaultFlowMinimumBandwidthWeight 30
Set-VMSwitch $SwitchName -DefaultFlowMinimumBandwidthWeight 20
#Creating Management OS Adapters (SYD-MGMT)
Write-Host "$CurrentDate --> Creating and configuring virtual NIC for Management OS"
Write-Output "$CurrentDate --> Creating and configuring virtual NIC for Management OS" | Add-Content $LogPath
Add-VMNetworkAdapter -ManagementOS -Name "SYD-MGMT" -SwitchName $SwitchName
Set-VMNetworkAdapter -ManagementOS -Name "SYD-MGMT" -MinimumBandwidthWeight 30 -VmqWeight 80
Set-VMNetworkAdapterVlan -ManagementOS -VMNetworkAdapterName "SYD-MGMT" -Access -VlanId 0
#Creating Management OS Adapters (MEL-MGMT)
Write-Host "$CurrentDate --> Creating and configuring virtual NIC for Management OS"
Write-Output "$CurrentDate --> Creating and configuring virtual NIC for Management OS" | Add-Content $LogPath
Add-VMNetworkAdapter -ManagementOS -Name "MEL-MGMT" -SwitchName $SwitchName
Set-VMNetworkAdapter -ManagementOS -Name "MEL-MGMT" -MinimumBandwidthWeight 30 -VmqWeight 80
Set-VMNetworkAdapterVlan -ManagementOS -VMNetworkAdapterName "MEL-MGMT" -Access -VlanId 0
#Creating Cluster Adapters
Write-Host "$CurrentDate --> Creating and configuring virtual NIC for Cluster"
Write-Output "$CurrentDate --> Creating and configuring virtual NIC for Cluster" | Add-Content $LogPath
#Add-VMNetworkAdapter -ManagementOS -Name "Cluster" -SwitchName "ConvergedNetSwitch"
Add-VMNetworkAdapter -ManagementOS -Name "HV-Cluster" -SwitchName $SwitchName
Set-VMNetworkAdapter -ManagementOS -Name "HV-Cluster" -MinimumBandwidthWeight 20 -VmqWeight 80
Set-VMNetworkAdapterVlan -ManagementOS -VMNetworkAdapterName "HV-Cluster" -Access -VlanId 0
#Creating LiveMigration Adapters
Write-Host "$CurrentDate --> Creating and configuring virtual NIC for LiveMigration"
Write-Output "$CurrentDate --> Creating and configuring virtual NIC for LiveMigration" | Add-Content $LogPath
Add-VMNetworkAdapter -ManagementOS -Name "HV-MIG" -SwitchName $SwitchName
Set-VMNetworkAdapter -ManagementOS -Name "HV-MIG" -MinimumBandwidthWeight 40 -VmqWeight 90
Set-VMNetworkAdapterVlan -ManagementOS -VMNetworkAdapterName "HV-MIG" -Access -VlanId 0
#Creating iSCSI-A Adapters
Write-Host "$CurrentDate --> Creating and configuring virtual NIC for iSCSI-A"
Write-Output "$CurrentDate --> Creating and configuring virtual NIC for iSCSI-A" | Add-Content $LogPath
Add-VMNetworkAdapter -ManagementOS -Name "iSCSI-A" -SwitchName $SwitchName
Set-VMNetworkAdapter -ManagementOS -Name "iSCSI-A" -MinimumBandwidthWeight 40 -VmqWeight 100
Set-VMNetworkAdapterVlan -ManagementOS -VMNetworkAdapterName "iSCSI-A" -Access -VlanId 0
#Creating iSCSI-B Adapters
Write-Host "$CurrentDate --> Creating and configuring virtual NIC for iSCSI-B"
Write-Output "$CurrentDate --> Creating and configuring virtual NIC for iSCSI-B" | Add-Content $LogPath
Add-VMNetworkAdapter -ManagementOS -Name "iSCSI-B" -SwitchName $SwitchName
Set-VMNetworkAdapter -ManagementOS -Name "iSCSI-B" -MinimumBandwidthWeight 40 -VmqWeight 100
Set-VMNetworkAdapterVlan -ManagementOS -VMNetworkAdapterName "iSCSI-B" -Access -VlanId 0
Write-Host "Waiting 40 seconds for virtual devices to initialise"
Start-Sleep -Seconds 40
#Configure the IP's for the Virtual Adapters
Write-Host "$CurrentDate --> Configuring IPv4 address for the Management OS virtual NIC"
Write-Output "$CurrentDate --> Configuring IPv4 address for the Management OS virtual NIC" | Add-Content $LogPath
#New-NetIPAddress -InterfaceAlias "vEthernet (SYD-MGMT)" -IPAddress $ManagmentOSIPv4 -PrefixLength 24 -DefaultGateway $CommanGatewayIPv4
New-NetIPAddress -InterfaceAlias "vEthernet (SYD-MGMT)" -IPAddress $ManagmentOSIPv4 -PrefixLength 24
Set-DnsClientServerAddress -InterfaceAlias "vEthernet (SYD-MGMT)" -ServerAddresses ($ManagmentDNS1, $ManagmentDNS2)
Write-Host "$CurrentDate --> Configuring IPv4 address for the Management OS virtual NIC"
Write-Output "$CurrentDate --> Configuring IPv4 address for the Management OS virtual NIC" | Add-Content $LogPath
New-NetIPAddress -InterfaceAlias "vEthernet (MEL-MGMT)" -IPAddress $ManagmentOS2IPv4 -PrefixLength 24
Set-DnsClientServerAddress -InterfaceAlias "vEthernet (MEL-MGMT)" -ServerAddresses ($ManagmentDNS3, $ManagmentDNS4)
Write-Host "$CurrentDate --> Configuring IPv4 address for the Cluster virtual NIC"
Write-Output "$CurrentDate --> Configuring IPv4 address for the Cluster virtual NIC" | Add-Content $LogPath
New-NetIPAddress -InterfaceAlias "vEthernet (HV-Cluster)" -IPAddress $ClusterIPv4 -PrefixLength 24
#Set-DnsClientServerAddress -InterfaceAlias "vEthernet (HV-Cluster)" -ServerAddresses $ManagmentDNS1
Write-Host "$CurrentDate --> Configuring IPv4 address for the LiveMigration virtual NIC"
Write-Output "$CurrentDate --> Configuring IPv4 address for the LiveMigration virtual NIC" | Add-Content $LogPath
New-NetIPAddress -InterfaceAlias "vEthernet (HV-MIG)" -IPAddress $LiveMigrationIPv4 -PrefixLength 24
#Set-DnsClientServerAddress -InterfaceAlias "vEthernet (LiveMigration)" -ServerAddresses $ManagmentDNS1
Write-Host "$CurrentDate --> Configuring IPv4 address for the iSCSI-A virtual NIC"
Write-Output "$CurrentDate --> Configuring IPv4 address for the iSCSI-A virtual NIC" | Add-Content $LogPath
New-NetIPAddress -InterfaceAlias "vEthernet (iSCSI-A)" -IPAddress $CSVIPv4 -PrefixLength 24
#Set-DnsClientServerAddress -InterfaceAlias "vEthernet (iSCSI-A)" -ServerAddresses $ManagmentDNS1
Write-Host "$CurrentDate --> Configuring IPv4 address for the iSCSI-B virtual NIC"
Write-Output "$CurrentDate --> Configuring IPv4 address for the iSCSI-B virtual NIC" | Add-Content $LogPath
New-NetIPAddress -InterfaceAlias "vEthernet (iSCSI-B)" -IPAddress $CSV2IPv4 -PrefixLength 24
#Set-DnsClientServerAddress -InterfaceAlias "vEthernet (CSV2)" -ServerAddresses $ManagmentDNS1
#Write-Host "$CurrentDate --> Configuring IPv4 address for the VMNet virtual NIC"
#Write-Output "$CurrentDate --> Configuring IPv4 address for the VMNet virtual NIC" | Add-Content $LogPath
#New-NetIPAddress -InterfaceAlias "vEthernet (VMNet)" -IPAddress $VMNetIPv4 -PrefixLength 24
#Set-DnsClientServerAddress -InterfaceAlias "vEthernet (VMNet)" -ServerAddresses $ManagmentDNS1
Write-Host "$CurrentDate --> Hyper-V Configuration is Complete"
Write-Output "$CurrentDate --> Hyper-V Configuration is Complete" | Add-Content $LogPath
catch [Exception]
throw "$_" | Add-Content $LogPath
I would really like to know why I'm getting absolutely poor performance. Any help on this would be most appreciated.I didn't parse the entire script, but a few things stand out.
SR-IOV and teaming don't mix. The purpose of SR-IOV is to go straight from the virtual machine into the physical adapter and back, completely bypassing the entire Hyper-V virtual switch and everything that goes with it. Team or SR-IOV.
You're adding DNS servers to adapters that don't need them. Inbound traffic is going to be confused, to say the least. The only adapter that should have DNS addresses is the management adapter. For all others, you should run Set-DnsClient -RegisterThisConnectionsAddress
$false.
I don't know that I'm reading your script correctly, but it appears you have multiple adapters set up for management. That won't end well.
It also looks like you have QoS weights that total over 100. That also won't end well.
I don't know that these explain poor performance like you're describing, though. It could just be that you're a victim of network adapters/drivers that have poor support for VMQ. Bad VMQ is worse than no VMQ. But, VMQ+teaming+SR-IOV sounds like recipe for
heartache to me, so I'd start with that.
Eric Siron Altaro Hyper-V Blog
I am an independent blog contributor, not an Altaro employee. I am solely responsible for the content of my posts.
"Every relationship you have is in worse shape than you think." -
I'm on a windows xp sp 3 machine with an x800 xt pe graphics card using the latest catalyst drivers from Ati. Ever since I updated flash, I'm getting very poor performance during 720p with acceleration enabled. I'm also getting bad performance when it's disabled. Is there an issue with the 10.2 legacy (ati) drivers not enabling hardware acceleration with 10.1 flash?
BTW I went back to using 10.0.42.34 flash and everything is running fine again.I've also noticed poor performance since installing the 10.1 plugin. Not just in HD video etc, but in general use. So much for "improved performance"...
No idea on solutions at this stage - In the process of downgrading to previous version to see if that fixes my problems -
PCMCIA gigabit cards are poor performance with lenovo n100
Hello,
I have a lenovo n100 and I tried two pcmcia gigabit cards (Dlink DGE 660TD and TRENDnet TEG-PCBUSR) with very poor performance. I tested with iperf (cat6 cable with Siemens Sinergie S300 server) and Windows, linux, normal config, tunned tcp parameters, the outcome is always the same, 200Mbits upload and 76Mbits for download.
Any sugestion?
Kind regards,
André P. Mugalead_org wrote:
There is two type of PCMCIA, one is running at 16 bit another is running through 32 bit.
You can achieve the gigabit requirements quite comfortably with the 32 bit, but i think the 16 bit version is not going to be enough for the gigabit ethernet.
Running at Mhz??? I don't understand how that is anything to with data bandwidth.
Both are pcmcia2, 32 bits, gigabit ethernet, full duplex, cards.
The peak transfer rate is calculated by <bus speed MHz> * <bus width> = <Mbps>
Example:
Bus speed 33MHz, Bus width: 32bits
33 * 32 = 1056 Mbps or 132MBps
Bus speed 667MHz, Bus width: 32bits
667 * 32 = 21344Mbps or 2668MBps
The lenovo N100 has a 32 bit bus with 667MHz.... no limitation here. -
Fop 0.19 problems with small files?
Hello!
I have a problem with fop 0.19 serializer: when I try to generate
pdf files smaller then cca. 10kB, IE does not open Acrobat
Reader, and sometimes even freezes. With larger files, it works
OK.
My configuration:
Tomcat 3.2
XDK 9.0.2.0b
fop 0.19
Thanks in advance!
VedranHi Eric/Steve,
I have downloaded the Xml development kit for Java (9.0.2.0.0C
beta) and created a new xsql RTF-serializer class according to
the XSQLSampleSerializer included in the xsqlserializer.jar file.
I also included Eric's CustFOP-serializer.
I can compile my new class with JDeveloper but when i recreate
the xsqlserializer.jar and try to use this jar-file with the
xsql servlet i get an error.
The error is "XSQL-022: cannot load serializer class
oracle.xml.xsql.serializers.XSQLxxxSerializer", with xxx my own
serializer, but also when i use the original FOP-serializer.
So i think the jar-file is not correct.
Can anyone tell me how to recreate the xsqlserializer.jar or
tell me what else i have done wrong?
(I also posted this question in the JDeveloper-forum) -
Are there Issues with poor performance with Maverick OS,
Are there issues with slow and reduced performance with Mavericks OS
check this
http://apple.stackexchange.com/questions/126081/10-9-2-slows-down-processes
or
this:
https://discussions.apple.com/message/25341556#25341556
I am doing a lot of analyses with 10.9.2 on a late 2013 MBP, and these analyses generally last hours or days. I observed that Maverick is slowing them down considerably for some reasons after few hours of computations, making it impossible for me to work with this computer... -
Photoshop laggy, poor performance with GPU enabled
I'm using Photoshop CS6 for some time now. I had enabled GPU usage earlier and I remember that Photoshop ran absolutely smoothly without and lag what-so-ever. This morning, all of a sudden, it has become extermely laggy. I don't understand the reason behind this. This had happened to me before as well but it became alright after a few days. This also happened to me once while using Photoshop CS5. I didn't install any plugin and didn't change any software. I also want to point out that I had 13.4 driver version when Photoshop was working fine, and now too I have the same driver version.
CPU: AMD Phenom II X4 955
Memory: 6 GB
Free storage: 8 GB
GPU: ATI Radeon HD 5850I've also noticed poor performance since installing the 10.1 plugin. Not just in HD video etc, but in general use. So much for "improved performance"...
No idea on solutions at this stage - In the process of downgrading to previous version to see if that fixes my problems -
Ntsc to pal conversions with small file sizes
I'm trying to convert a file from NTSC to PAL, which I have done successfully in the past. However, the file needs to be under 200MB (the video is 3.40) and I can not seem to get it any lower than 346 MB using the dv-pal setting and everything as low as possible and the sound set to mono. Any suggestions?
Thanks,
ChristyDV PAL is a set data rate - 3.56 MB/s when run at 25 fps.
If you want a smaller file size you have two choices -
1. convert the file to another codec that allows for smaller frame sizes, slower frame rates and increased intra and inter frame compression.
2. If it must be DV/PAL, cut the length of the video to reach your 200mb limit.
Of course there is the third choice of simply giving them the larger file because that's what an un-compromised DV/PAL version of the file will be.
x -
Poor performance with Archived projects on Time Capsule
I work in an educational environment where multiple students share four iMacs (all 2008 models or newer, with 2 or 4 GB of RAM on each machine). When a student is done working on a project for the day they save it as an Archive to a Time Capsule, which is shared by every computer on the network, so that they can access it on any of the computers in the building The problem is that often times, even on projects with only 4 or 6 tracks, the load time is extremely slow from the Time Capsule (10 or more minutes for a 11 MB project yesterday) and once loaded the same projects frequently give the "too many tracks" error and will not play and are thus useless. I tried temporarily moving the project to the HD of the computer in use, but this also took a long time and didn't really solve the problem.
Is it possible we're having bandwidth issues? I could see how this would slow the load time, but not playback once loaded. Our ISP plan is rather slow... probably no more than 5 Mbps and it's shared between 6 or 7 computers at a time.
Any other thoughts or solutions? It's slowed some of our students progress to a halt.1 megabyte per minute is extremely slow in terms of transferring or opening a file.
it is, but assuming you have more than one machine connected to it, the bandwidth is being split between every machine that's accessing it. as well, it's not designed for what you seem to have purposed it... it's a backup drive, not a working drive (which would also mean you have no backups)
once the Archived project is loaded, shouldn't it no longer be referring wirelessly back to the TC
i've never studied how much disk access GB utilizes, but OS X in general does a lot. the latency alone across that network would have to be huge, and to add to the problem, i doubt there's a 7200RPM drive in the TC.
looking at it anotehr way, we always recommend firewire drives due to the bandwidth problems associated with the file sizes of audio or video data (even USB 2.0 does not have the sustained throughput that FW does). as a quick off-the-top-of-my-head calculation, firewire 400 offers around 50MB/s throughput. 802.11n, the fastest of the current wireless specs, offers around 6.75MB/s (theoretically up to around 15MB/s, but i think that requires multi-channel usage). that's a HUGE difference, and when you're moving lots of data, it's very relevant.
Maybe you are looking for
-
How do I open encrypted pdf files sent to me as email attachments?
Do I need to download a specific version of Adobe Reader or some other software?
-
XML Spy Like Functionality in Jdeveloper?
Hi all, May I know whether there is any XML Spy like functionality in Jdeveloper or a plug in for the same to see the XML Messages passing? Regards, ATC-OD-EMEA
-
Hi Everybody! I have a question on pins..
I have a navigation bar at the top of my page. The desired effect is for the navigation bar to scroll with the page, as if it was pinned, but stop once it reaches a certain point. So that it seems pinned to the header for the top half of the page, th
-
After installing lion os the mp navigator has the error "mp navigator 2.2 does not open"
Problems with my canon mp530, scanner does not work after installing lion os
-
Greetings, I am simply wondering what is the recommended download package and setup for Oracle DB in my situation. I am a developer writing an app for a business who (will be) using an Oracle-based ERP inventory management system. On my computer I wi