Truncate log and device/segment size

If I have a ASE database, it's log is never be truncated, the log become very large. I do have backup every day, but backup did not reduce the size of log.
If I turncate the log today. the space on device for log will be released. Is it possible to reduce the size of the device for log on live production?
Also if log never be truncated, does it impact the ASE performance?

Hi Kent,
Refer to the discussion in thread http://scn.sap.com/thread/3467480
Hope this helps.
Regards,
Deepak Kori

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Canon T2i log and transfer, file size HUGE

Hi everyone. I need help understanding why my canon t2i files are so large in fcp 7. i've downloaded and modified the script for canon os plugin for tcp, so i can use the log and transfer feature. i have the preferences set to apple 422

This is a question for the Final Cut Studio forum. Your clips are being transcoded to ProRes, which are much larger than the original H.264.

Final Cut Pro 7 Log and Capture Frame Sizes

When importing from a Roland VR-5 mixer into Final Cut Pro 7, we get black border/bars on the left and right sides of the preview. We didn't think anything of it, that it might have just been the preview window. These bars are recorded though, it's as if we're not recording the full frame size coming out of our mixer. We went into the settings on the VR-5 and everything was configured to be 720x480, and that the settings in FCP matched. The image still gets cut off. Any ideas?

Some background:
720x480 is a non-square format. It can either be the equal of 640 x 480 (4:3) or 954 x 480 (16:9) depending on what you tell your editing software the incoming stream will be.
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Ad7476A and device buffer size

Hi, I'm using the BF Analog Read ad7476a vi (modified)!
But I can't get the size I want to the filled by the buffer..
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Solved!
Go to Solution.
Attachments:
main.vi ‏21 KB

Hi guys:
I need your help again, here is the problem.
I'm using AD7476A via SPI using circular buffer, the problem is, I want to be shure that whenever I read a subbuffer (after callback), I don't lose any data from the input signal, but using debug mode I can't know because the refresh rate is too slow..
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António Veríssimo de Freitas
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main_ad7476a.jpg ‏70 KB
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Db Blocksize and Filesystem block size

Hi All
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Best Regards

Hello,
The DB_BLOCK_SIZE is usually a multiple of the OS Block Size.
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Device not working with Log and Transfer in FCP

I am trying to get some footage off my camera into final cut pro, but Final Cut Pro does not recognise my device when I try to use Log & Transfer
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http://www.canon.co.uk/ForHome/Product_Finder/Camcorders/flash_memory/LEGRIAFS20/
I have looked around but can't seem to find any plug-ins to get it to work with Final Cut Pro, does anyone know any way I can get it to work with Log and Transfer
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Thanks

Hi -
I did a little Google searching for information on your camera and it appears that it is a Standard Definition Camera that records in the MPEG-2 format.
Log and Transfer only works with High Definition material.
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http://www.squared5.com/svideo/mpeg-streamclip-mac.html
This application will convert your MPEG-2 files into a format that you can use directly in FCP.
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MtD

Block size in tt for writing data to transaction log and checkpoint files

Hello,
what block size is TimesTen using when its writing data to transaction log and checkpoint files? Does it use some fixed block size during filesystem writes?

Although in theory logging can write 2 KB blocks in almost all circumstances it will write 4 KB or larger so yes a filesystem with a 4 KB block size is fine for both checkpointing and logging.
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Log and Capturing from USB device?

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Photoshop cc optimising for web and devices, keeping metadata for original size

Hello, I am having trouble working out why the CC version of photoshop keeps the metadata for the original sized photograph after being optimised for web and devices.
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I can no longer use all of the "Computer Management" tools against a remote computer. "Local Users and Groups", "Event Viewer", "Performance Logs and Alerts" and "Device Manager"

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Redo log and buffer size

Hi,
i'm trying to size redolog and the buffer size in the best way.
I already adjusted the size of the redo to let them switch 1/2 times per hour.
The next step is to modify the redo buffer to avoid waits.
Actually this query gives me 896 as result.
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FROM V$SYSSTAT
WHERE NAME = 'redo buffer allocation retries';
I suppose this should be near to 0.
Log_buffer is setted to 1m.
And i read "sizing the log buffer larger than 1M does not provide any performance benefit" so what can i do to reduce that wait time?
Any ideas or suggestions?
Thanks
Acr

ACR80,
Every time you create a redo entry, you have to allocate space to copy it into the redo buffer. You've had 588 allocation retries in 46M entries. That's "close to zero"..
redo entries 46,901,591
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If in doubt, check the two wait events:
"log file sync"
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Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk

Control the size of Essbase.log and application log

Understand that there are many message were written to the Essbase.log and application log. Is there any method to control what kind of message to be written to the log file so as to reduce the IO frequency of the server disk folders?
Thanks for your help!

CL wrote:
You might want to think about forcing your BSO/ASO PAG & IND/DAT files to go onto a separate drive volume from your base Essbase binaries. This can be tough to do in a SAN environment as it is difficult to know what is truly where.
Another option would be to use CLEARLOGFILE to reset the logs (this will delete them every time you stop/restart Essbase, so make sure you archive them if you need log history).
See: http://download.oracle.com/docs/cd/E10530_01/doc/epm.931/html_esb_techref/config/clearlogfile.htm
Yet another would be to set SSLOGUNKNWON to false to cut down on the log.
See: http://download.oracle.com/docs/cd/E10530_01/doc/epm.931/html_esb_techref/config/sslogunknown.htm
Regards,
Cameron LackpourThanks! We already separate the log files from the data files but they still in the same hardware server. Yes, in SAN environment we really don't know where it the physical drive.
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Working with AVCHD: Log and Transfer FAQs

Disclaimer: Apple does not necessarily endorse any suggestions, solutions, or third-party software products that may be mentioned in the topic below. Apple encourages you to first seek a solution at Apple Support. The following links are provided as is, with no guarantee of the effectiveness or reliability of the information. Apple does not guarantee that these links will be maintained or functional at any given time. Use the information below at your own discretion.
Working with AVCHD: Log and Transfer FAQs
Log and Transfer was introduced to the product chain in Final Cut Express 4, and is the program's process for ingesting files in the AVCHD format utilizing MPEG-4 AVC/H.264 video coding and either Dolby AC-3 or uncompressed linear PCM audio coding. The most frequently observed problems relating to the Log and Transfer process are generally quite easily addressed.
What should I know before attempting to ingest my footage?
The following facts regarding the Log and Transfer process were adapted from the [Apple Knowledge Base article|http://support.apple.com/kb/TA24840?viewlocale=en_US] on transferring AVCHD in Final Cut Pro 6.0.1 but still hold true for the current version of FCE:
AVCHD support is available only on Intel-based Macintosh computers.
AVCHD camcorders typically connect to computers via USB 2.0, not FireWire.
DVD-based AVCHD camcorders are not supported in Mac OS X 10.4 or earlier.
Standard definition video recorded with AVCHD camcorders cannot be accessed in the Log and Transfer window. SD and HD clips should not be mixed on the same HDD.
Preview of AVCHD video in the Log and Transfer window is limited to 1x forward playback. Scrubbing the playhead does not update the video in the Preview area until you stop scrubbing.
When you choose to transfer AVCHD audio in the Logging area, audio is automatically mixed down to stereo.
AVCHD footage is not ingested natively but is transcoded to the Apple Intermediate Codec.
Apple Intermediate Codec files are significantly larger than the original AVCHD files. FCE does not estimate the size of a transcoded AVCHD file before ingesting, so it is possible to exceed the available space on your capture disk during transfer. Before ingesting, keep in mind that the disk space required is about ten times greater than the size of the native AVCHD file.
Which specific formats can be ingested by Log and Transfer?
Only AVCHD footage can be ingested through the Log and Transfer process. Other formats and variants such as AVCHD Lite are not supported. All video should be recorded in a frame size of either 1440x1080 or 1920x1080 and a frame rate of 25 or 29.97 frames per second. Audio recorded on AVCHD camcorders is generally at a rate of 48kHz. If your camera shoots in a format that does not comply with one of these setups then it is most likely not supported by the application and is not guaranteed to work correctly.
Which Easy Setup preset should I select before ingesting my footage?
It is extremely important to select the preset that matches your media before you attempt to ingest via Log and Transfer. There is only one Easy Setup preset that matches the frame size and rate of your footage. If you intend to ingest AVCHD clips through Log and Transfer you will first need to select one of the following presets:
AVCHD-Apple Intermediate Codec 1440x1080i50
AVCHD-Apple Intermediate Codec 1440x1080i60
AVCHD-Apple Intermediate Codec 1920x1080i50
AVCHD-Apple Intermediate Codec 1920x1080i60
If these four options do not appear under your Easy Setup list then you probably need to run Software Update and update to FCE 4.0.1. DO NOT cycle through the available presets until you find one that works - there is only one preset that matches your media and it should be evident which one to choose by the way it is named. Select the AVCHD preset that mentions your frame size and frame rate (i50 presets support both 50i and 25p frame rates; similarly, i60 presets support both 60i and 29.97p frame rates). If you do cycle through many options in the hope of selecting the correct one through guess-and-check you will probably have corrupted your preference file and need to [trash your preferences|http://support.apple.com/kb/TS2611] before continuing.
Why don't my clips appear when I open the Log and Transfer window?
Make sure your camcorder records AVCHD in a format supported by FCE4. It should be connected to one of your computer's USB ports (never connect it to an external hard drive or other external device such as your keyboard or a USB hub), powered on, and set to video playback mode.
If the camcorder +does not+ mount on your Desktop your USB port or cable may be malfunctioning. Try plugging it in to another port or using a different USB cable to see if it makes a difference.
If the camcorder does mount on your Desktop but the clips do not appear in the Log and Transfer window you will need to point the program to the directory that contains your media.
First, click the Add Folder button in the upper left of the Log and Transfer window. The button looks like this:
Then, you will need to navigate to the root directory in which your media is stored. Most camcorders call this folder "PRIVATE" or "AVCHD" and it should be located at the very top level of the camcorder when mounted. If your camcorder records to a valid AVCHD directory structure then your clips should load after the Add Folder process is completed.
I would like to keep a working backup of my original clips so that I can delete them off the camcorder's internal memory. How should I do this?
There are two main ways to keep a backup of your clips. The first is to ingest every clip on your camcorder through the Log and Transfer process, and store the Apple Intermediate Codec files the application creates in an easily accessible place such as an external FireWire drive. The advantage of this method is that you have the ability to open back up old editing projects, reconnect the media as necessary, and keep going as if you'd never left. However, due to the large amount of space AIC takes up (usually somewhere in the vicinity of 41-50GB an hour when transcoded from AVCHD), this is not always feasible.
Another often preferable approach is to copy over the root directory in which your clips are stored (usually named "PRIVATE" or "AVCHD") from the camcorder to your computer or an external drive. As long as you maintain the original file structure, you will be able to ingest your clips again at a later date using the "Add Folder" process detailed above to navigate to their new location.
My clips appear, but when I attempt to ingest a red exclamation point appears and the window displays the message "Error: No Data"
This is one of the most common problems that users experience when trying to ingest their media through the Log and Transfer process. Luckily, it also has one of the easiest solutions.
In the Log and Transfer window, click on the gear icon in the top right and select "Preferences" in the contextual menu that appears.
Make sure the video is set to transcode to the Apple Intermediate Codec and the audio is set to Plain Stereo.
After doing so, hit OK and try to ingest again.
I am experiencing a problem that is not covered in this tip or the solutions here do not work.
The best thing to do at this point would be to trash your preferences and start a new topic in the [FCE Forum|http://discussions.apple.com/forum.jspa?forumID=936&start=0] with a detailed description of your problem. Check out the user tip on [Basic Troubleshooting in Final Cut Express|http://discussions.apple.com/thread.jspa?threadID=2662419] for more information.
This is the 1st version of this tip. It was submitted on December 03, 2010 by skalicki`.
Do you want to provide feedback on this User Contributed Tip or contribute your own? If you have achieved Level 2 status, visit the User Tips Library Contributions forum for more information.

Disclaimer: Apple does not necessarily endorse any suggestions, solutions, or third-party software products that may be mentioned in the topic below. Apple encourages you to first seek a solution at Apple Support. The following links are provided as is, with no guarantee of the effectiveness or reliability of the information. Apple does not guarantee that these links will be maintained or functional at any given time. Use the information below at your own discretion.
Working with AVCHD: Log and Transfer FAQs
Log and Transfer was introduced to the product chain in Final Cut Express 4, and is the program's process for ingesting files in the AVCHD format utilizing MPEG-4 AVC/H.264 video coding and either Dolby AC-3 or uncompressed linear PCM audio coding. The most frequently observed problems relating to the Log and Transfer process are generally quite easily addressed.
What should I know before attempting to ingest my footage?
The following facts regarding the Log and Transfer process were adapted from the [Apple Knowledge Base article|http://support.apple.com/kb/TA24840?viewlocale=en_US] on transferring AVCHD in Final Cut Pro 6.0.1 but still hold true for the current version of FCE:
AVCHD support is available only on Intel-based Macintosh computers.
AVCHD camcorders typically connect to computers via USB 2.0, not FireWire.
DVD-based AVCHD camcorders are not supported in Mac OS X 10.4 or earlier.
Standard definition video recorded with AVCHD camcorders cannot be accessed in the Log and Transfer window. SD and HD clips should not be mixed on the same HDD.
Preview of AVCHD video in the Log and Transfer window is limited to 1x forward playback. Scrubbing the playhead does not update the video in the Preview area until you stop scrubbing.
When you choose to transfer AVCHD audio in the Logging area, audio is automatically mixed down to stereo.
AVCHD footage is not ingested natively but is transcoded to the Apple Intermediate Codec.
Apple Intermediate Codec files are significantly larger than the original AVCHD files. FCE does not estimate the size of a transcoded AVCHD file before ingesting, so it is possible to exceed the available space on your capture disk during transfer. Before ingesting, keep in mind that the disk space required is about ten times greater than the size of the native AVCHD file.
Which specific formats can be ingested by Log and Transfer?
Only AVCHD footage can be ingested through the Log and Transfer process. Other formats and variants such as AVCHD Lite are not supported. All video should be recorded in a frame size of either 1440x1080 or 1920x1080 and a frame rate of 25 or 29.97 frames per second. Audio recorded on AVCHD camcorders is generally at a rate of 48kHz. If your camera shoots in a format that does not comply with one of these setups then it is most likely not supported by the application and is not guaranteed to work correctly.
Which Easy Setup preset should I select before ingesting my footage?
It is extremely important to select the preset that matches your media before you attempt to ingest via Log and Transfer. There is only one Easy Setup preset that matches the frame size and rate of your footage. If you intend to ingest AVCHD clips through Log and Transfer you will first need to select one of the following presets:
AVCHD-Apple Intermediate Codec 1440x1080i50
AVCHD-Apple Intermediate Codec 1440x1080i60
AVCHD-Apple Intermediate Codec 1920x1080i50
AVCHD-Apple Intermediate Codec 1920x1080i60
If these four options do not appear under your Easy Setup list then you probably need to run Software Update and update to FCE 4.0.1. DO NOT cycle through the available presets until you find one that works - there is only one preset that matches your media and it should be evident which one to choose by the way it is named. Select the AVCHD preset that mentions your frame size and frame rate (i50 presets support both 50i and 25p frame rates; similarly, i60 presets support both 60i and 29.97p frame rates). If you do cycle through many options in the hope of selecting the correct one through guess-and-check you will probably have corrupted your preference file and need to [trash your preferences|http://support.apple.com/kb/TS2611] before continuing.
Why don't my clips appear when I open the Log and Transfer window?
Make sure your camcorder records AVCHD in a format supported by FCE4. It should be connected to one of your computer's USB ports (never connect it to an external hard drive or other external device such as your keyboard or a USB hub), powered on, and set to video playback mode.
If the camcorder +does not+ mount on your Desktop your USB port or cable may be malfunctioning. Try plugging it in to another port or using a different USB cable to see if it makes a difference.
If the camcorder does mount on your Desktop but the clips do not appear in the Log and Transfer window you will need to point the program to the directory that contains your media.
First, click the Add Folder button in the upper left of the Log and Transfer window. The button looks like this:
Then, you will need to navigate to the root directory in which your media is stored. Most camcorders call this folder "PRIVATE" or "AVCHD" and it should be located at the very top level of the camcorder when mounted. If your camcorder records to a valid AVCHD directory structure then your clips should load after the Add Folder process is completed.
I would like to keep a working backup of my original clips so that I can delete them off the camcorder's internal memory. How should I do this?
There are two main ways to keep a backup of your clips. The first is to ingest every clip on your camcorder through the Log and Transfer process, and store the Apple Intermediate Codec files the application creates in an easily accessible place such as an external FireWire drive. The advantage of this method is that you have the ability to open back up old editing projects, reconnect the media as necessary, and keep going as if you'd never left. However, due to the large amount of space AIC takes up (usually somewhere in the vicinity of 41-50GB an hour when transcoded from AVCHD), this is not always feasible.
Another often preferable approach is to copy over the root directory in which your clips are stored (usually named "PRIVATE" or "AVCHD") from the camcorder to your computer or an external drive. As long as you maintain the original file structure, you will be able to ingest your clips again at a later date using the "Add Folder" process detailed above to navigate to their new location.
My clips appear, but when I attempt to ingest a red exclamation point appears and the window displays the message "Error: No Data"
This is one of the most common problems that users experience when trying to ingest their media through the Log and Transfer process. Luckily, it also has one of the easiest solutions.
In the Log and Transfer window, click on the gear icon in the top right and select "Preferences" in the contextual menu that appears.
Make sure the video is set to transcode to the Apple Intermediate Codec and the audio is set to Plain Stereo.
After doing so, hit OK and try to ingest again.
I am experiencing a problem that is not covered in this tip or the solutions here do not work.
The best thing to do at this point would be to trash your preferences and start a new topic in the [FCE Forum|http://discussions.apple.com/forum.jspa?forumID=936&start=0] with a detailed description of your problem. Check out the user tip on [Basic Troubleshooting in Final Cut Express|http://discussions.apple.com/thread.jspa?threadID=2662419] for more information.
This is the 1st version of this tip. It was submitted on December 03, 2010 by skalicki`.
Do you want to provide feedback on this User Contributed Tip or contribute your own? If you have achieved Level 2 status, visit the User Tips Library Contributions forum for more information.

Advice on SQL Logs and Backups

Hi All,
I've been trying to understand SQL backups and I'm getting a bit stuck in one area - the log files.
I find they're getting quite big and as such filling up my drives. I'm guessing that the best way to handle this is to truncate them every so often - as the data is in the live DB I'm assuming that the log files should be small.
Q1 - I do daily full backups on my DB's via a maintenance plan so is it safe to say that the log files can be truncated daily?
Q2 - How do I go about truncating the logs? I tried a backup of them but I'm not sure what to do next.
Thanks for any help.
Tom

This can cause fragmentation and performance issues. Truncating the log is what happens when you take a backup.
Prashanth,
Shrinking log file does not causes fragmentation ( if you shrink data file it does cause) but your are correct that Shrinking log fiel should not be made every day practice.After shrinking when log file tries to grow it has to ask OS to allocate it space
which if done frequently ( on slower disk) can cause performance issue.
Tom,
>>I do daily full backups on my DB's via a maintenance plan so is it safe to say that the log files can be truncated daily?
A:NO only transaction log truncates log file ( or marks it reusable).So you have to take transaction log backup frequently( hope your DB is in full recovery).If your DB is in simple recovery automatic truncation happens and SQL server takes care of it after
checkpoint or when log grows 70 % of it size.
>>Q2 - How do I go about truncating the logs? I tried a backup of them but I'm not sure what to do next.
Again answer is simple take transaction log backup frequently or according to your RPO and RTO
PS: Sometimes when there is long running transaction like huge delete operation,index rebuild of huge database log might grow even frequent transaction log backup is there this is by design because unless transaction finishes or commits logs cannot be truncated
so if you face it look for open transaction and wait for it to commit.
Hope this helps
Please mark this reply as the answer or vote as helpful, as appropriate, to make it useful for other readers

"Limit Capture/Export File Segment Size To" doesn't work

I put the limit to 4000 MB before i startet capturing HD-video, but it didn't work. Several of my files are bigger than 4 GB. This is a problem since I use an online back up service that has 5 GB as the maximum file limit. Any suggestion to fix this problem is highly appreciated.

I believe, although I am not 100% sure, that the "Limit Capture/Export File Segment Size To" does not apply to Log and Transfer, only Log and Capture.
Since Log and Capture works with tape sources, when the limit is hit, the tape can be stopped, pre-rolled and started again to create another clip
In the case of Log and Transfer, it is ingesting and transcoding existing files; the clip lengths (and therefore size) are already determined by the source clip.
If you are working with very lengthy clips, you may want to set in and out points to divide the clips into smaller segments.
MtD

Truncate log and device/segment size

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