Is the Mountain Lion so much better than the Snow Leopard that make it worth buying?

Is the Mountain Lion so much better than the Snow Leopard that I'm currently using and worth the money to buy it? Is it more or less confusing to operate?

OS X 10.7-18.0+ will NOT run any current PPC based programs your running.
http://roaringapps.com/apps:table
If you have a MacPro like your signature says (the tower, not the laptop) then it's not going to have much of a performance loss as say the MacBook Pro's will.
Older, less powerful Mac's have performance losses with the newer OS X Lions, it might be best to stick with 10.6.8 on a older machine until it drops, then spend the money on all new software on a newer machine instead.
One guy was here today and had a 2007 Intel Core 2 Duo and it was struggling to run OS X Mountain Lion, Chrome and Photoshop.
It just didn't have the hardware horsepower for all that bloatware.
My advice if it's not a top end iMac or MacPro, then 2010 is the cut-off point, those 2010 machines and earlier are likely better off on 10.6.8 max.
It all depends upon one's perception of performance really.

Similar Messages

HT1338 Purchased a used macbook pro with Mountain Lion. My old Mac runs Snow Leopard is backed up to Time machine. How do I register the operating system to me and how do I use Time Machine to move my files to the new used computer?

Purchased a used macbook pro with Mountain Lion. My old Mac runs Snow Leopard is backed up to Time machine. How do I register the operating system to me and how do I use Time Machine to move my files to the new used computer?

If you look at the User Tips tab, you will find a write up on just this subject:
https://discussions.apple.com/docs/DOC-4053
The subject of buying/selling a Mac is quite complicated. Here is a guide to the steps involved. It is from the Seller's point of view, but easily read the other way too:
SELLING A MAC A
Internet Recovery, and Transferability of OS & iLife Apps
Selling an Old Mac:
• When selling an old Mac, the only OS that is legally transferable is the one that came preinstalled when the Mac was new. Selling a Mac with an upgraded OS isn't doing the new owner any favors. Attempting to do so will only result in headaches since the upgraded OS can't be registered by the new owner. If a clean install becomes necessary, they won't be able to do so and will be forced to install the original OS via Internet Recovery. Best to simply erase the drive and revert back to the original OS prior to selling any Mac.
• Additionally, upgrading the OS on a Mac you intend to sell means that you are leaving personally identifiable information on the Mac since the only way to upgrade the OS involves using your own AppleID to download the upgrade from the App Store. So there will be traces of your info and user account left behind. Again, best to erase the drive and revert to the original OS via Internet Recovery.
Internet Recovery:
• In the event that the OS has been upgraded to a newer version (i.e. Lion to Mountain Lion), Internet Recovery will offer the version of the OS that originally came with the Mac. So while booting to the Recovery Disk will show Mountain Lion as available for reinstall since that is the current version running, Internet Recovery, on the other hand, will only show Lion available since that was the OS shipped with that particular Mac.
• Though the Mac came with a particular version of Mac OS X, it appears that, when Internet Recovery is invoked, the most recent update of that version may be applied. (i.e. if the Mac originally came with 10.7.3, Internet Recovery may install a more recent update like 10.7.5)
iLife Apps:
• When the App Store is launched for the first time it will report that the iLife apps are available for the user to Accept under the Purchases section. The user will be required to enter their AppleID during the Acceptance process. From that point on the iLife apps will be tied to the AppleID used to Accept them. The user will be allowed to download the apps to other Macs they own if they wish using the same AppleID used to Accept them.
• Once Accepted on the new Mac, the iLife apps can not be transferred to any future owner when the Mac is sold. Attempting to use an AppleID after the apps have already been accepted using a different AppleID will result in the App Store reporting "These apps were already assigned to another Apple ID".
• It appears, however, that the iLife Apps do not automatically go to the first owner of the Mac. It's quite possible that the original owner, either by choice or neglect, never Accepted the iLife apps in the App Store. As a result, a future owner of the Mac may be able to successfully Accept the apps and retain them for themselves using their own AppleID. Bottom Line: Whoever Accepts the iLife apps first gets to keep them.
SELLING A MAC B
Follow these instructions step by step to prepare a Mac for sale:
Step One - Back up your data:
A. If you have any Virtual PCs shut them down. They cannot be in their "fast saved" state. They must be shut down from inside Windows.
B. Clone to an external drive using using Carbon Copy Cloner.
1. Open Carbon Copy Cloner.
2. Select the Source volume from the Select a source drop down menu on the left side.
3. Select the Destination volume from the Select a destination drop down menu on the right
side.
4. Click on the Clone button. If you are prompted about creating a clone of the Recovery HD be
sure to opt for that.
Destination means a freshly erased external backup drive. Source means the internal
startup drive.
Step Two - Prepare the machine for the new buyer:
1. De-authorize the computer in iTunes! De-authorize both iTunes and Audible accounts.
2, Remove any Open Firmware passwords or Firmware passwords.
3. Turn the brightness full up and volume nearly so.
4. Turn off File Vault, if enabled.
5. Disable iCloud, if enabled: See.What to do with iCloud before selling your computer
Step Three - Install a fresh OS:
A. Snow Leopard and earlier versions of OS X
1. Insert the original OS X install CD/DVD that came with your computer.
2. Restart the computer while holding down the C key to boot from the CD/DVD.
3. Select Disk Utility from the Utilities menu; repartition and reformat the internal hard drive.
Optionally, click on the Security button and set the Zero Data option to one-pass.
4. Install OS X.
5. Upon completion DO NOT restart the computer.
6. Shutdown the computer.
B. Lion and Mountain Lion (if pre-installed on the computer at purchase*)
Note: You will need an active Internet connection. I suggest using Ethernet if possible because
it is three times faster than wireless.
1. Restart the computer while holding down the COMMAND and R keys until the Mac OS X
Utilities window appears.
2. Select Disk Utility from the Mac OS X Utilities window and click on the Continue button.
3. After DU loads select your startup volume (usually Macintosh HD) from the left side list. Click
on the Erase tab in the DU main window.
4. Set the format type to Mac OS Extended (Journaled.) Optionally, click on the Security button
and set the Zero Data option to one-pass.
5. Click on the Erase button and wait until the process has completed.
6. Quit DU and return to the Mac OS X Utilities window.
7. Select Reinstall Lion/Mountain Lion and click on the Install button.
8. Upon completion shutdown the computer.
*If your computer came with Lion or Mountain Lion pre-installed then you are entitled to transfer your license once. If you purchased Lion or Mountain Lion from the App Store then you cannot transfer your license to another party. In the case of the latter you should install the original version of OS X that came with your computer. You need to repartition the hard drive as well as reformat it; this will assure that the Recovery HD partition is removed. See Step Three above. You may verify these requirements by reviewing your OS X Software License.

I inadvertently installed the mountain Lion Safari over my existing copy not realising that it would not work with OS 10.7.5 and now I am unable to use it .

I inadvertently installed the Mountain Lion Safari over my existing copy not realising that it would not work with OS 10.7.5 and now I am unable to use it .
Can someone suggest a solution please.

It should work, but it's an unmitigated mess. Simplest is to boot into recovery mode and reinstall the OS.

Why are the photos i print much darker than the monitor image?

why are the photos i print much darker than the monitor image?

Please read this post then provide some details. What printer model? What operating system? What program are you printing from?
Some programs such as Photoshop give the option to print to CMYK or sRGB color spaces. Even though the printer uses CMYK inks the driver is expecting sRGB data. If CMYK is selected the prints will be much too dark.
Another thing to check is the media type. If you are printing on plain paper and have seelcted Photo paper the prints have too much ink.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
If your problem is solved please click the "Accept as Solution" button ------------V
If my answer was helpful please click the "Thumbs Up" to say "Thank You"--V

Is it just me,or is the your Iphone working much better over the past day?

Is it just me,or is the your Iphone working much better over the past 24 hr. For the past 3 weeks it's been very slow in getting my email (can take up to 5 hrs) or accessing the internet. Over the past 24 hrs in New York City both email and internet have been fast as lightening. Is anyone else seeing improved service in the past 24 hrs? There hasn't been an update. Why is it all of a sudden working so well?

I get better 3G signal after the last update and in some areas where I used to get 1 or 2 bars maximum, now I get 3 and it is not dropping like before.

What if i loaded osx mountain lion without having upgraded to osx snow leopard

what if i loaded osx mountain lion without having upgraded to osx snow leopard

I don't believe ML will upgrade on top of anything earlier then SL. You might have to do a clean install.

Why is the sparse bundle so much smaller than the backed up computer...can I be confident all files are backed up?

Hey gang,
iphoto folder became big so I have moved it to an external drive. I made sure the external disk is not excluded from timemachine backup in tm preferences. Backup seemed to take forever (it actually said "preparing for backup" the whole time with a spinning progress bar) ie 24 hours and still the same pogress bar.
i stopped the process as i had no confidence anything was actually happening
When i open up time machine, an earlier version of my imac is there, but the external drive is kind of greyed and i cannot access it.
When I check the sparse bundle size, it is under 200 gb, when my imac is around 600 gb, 900 with the external drive.
Why is the sparse bundle so small relative to the imac? are there hidden data files outside of the sparse bundle? when checking the preferences, it states total included is 921 gb...yet that is not reflected in the sparse bundle size.
I want to be sure iphoto is actually backed up before deleting it from my imac.
thanks anyone!

marten berkman wrote:
I am wondering whether the "processing" progress bar was due to the time capsule freeing up space for the additional data on the new external drive. When I cancelled it, available space on the tc incresed from 200 to 500 gb.
Yes, quite possibly. Especially on Leopard and Snow Leopard, that process on network backups is excruciatingly repetitive and slow. It's improved greatly in Lion and later, but still isn't exactly quick.
The backup complete, i checked the contents of the backed up version of the external drive, and the iphoto folder was the same size as original, so I have confidence that iphoto is backed up. Now I could delete the iphoto from the imac, freeing up tons of space.
Yay!
Still curious why the imac sparsebundle is only 160gb, while my macbook pro sparsebundle is about 700 gb...as though they are inversely named from the computers they back up.
Oh, I didn't realize you had two Macs backing-up to the TC. Which one is the external HD connected to?
Unless you've specifically excluded things, after the initial backup, the sparse bundle should be nearly the size of the data it's backing-up (TM does exclude some things like system work files, most caches and logs, and trash, so the backups are a few GBs smaller). As you do more backups, of course, it will grow.
So please clarify how much data is on each drive, Mac, and sparse bundle.
Also, the 2tb time capsule has 258 gb of 1.8 tb available....am I to suppose that there is hidden backup data not in the sparse bundles?
Sparse bundles are odd critters. They don't automatically shrink when things are deleted from them. Instead, the vacated space is used for new files until it's full, then it begins to grow again. Time Machine will "compact" them when necessary, to reclaim the empty space, but doesn't take the time to do it unless it's out of room.
You can do that manually if you want, per the pink box in Time Machine - Frequently Asked Question #12.
Message was edited by: Pondini

Mountain Lion/Mavericks 'breaks' wifi base station - Snow Leopard works fine

Greetings all,
(Tried this in the OSx forum with no answers, so I figured I'd try the MacMini community and this one.)
I've been reading my way toward blindness through countless threads, here and elsewhere, from countless people, having problem with Mountain Lion and Wi-Fi these last few days, but some are using Airport, some are using third-party Wi-Fi routers, some aren't really specifying what they're using, so I thought I'd be as specific as possible about my situation - and add the fact that everything is still working fine if I boot into a cloned backup using Snow Leopard.
===
So here's the situation. I have a Intel Mac Mini which I use as a Wi-Fi base station for a Intel PowerBook Pro and an iPod 5. The Mini has been running Snow Leopard, and the PowerBook had been upgraded to Mountain Lion a few months ago. Things were still working fine at that point - the PowerBook's shift from SL to ML didn't affect its connectivity as a 'receiver' at all. About a week ago however, I finally upgraded the Mini to Mountain Lion as well (so that I could install the current version of Adobe Lightroom) and lost my Wi-Fi Internet access.
When I turn Wi-Fi on at the PowerBook, the Mini's network is visible, and I get the solid Wi-Fi fan showing a full connection, but I cannot access the Internet (indicated by the exclaimation point inside the fan for the first few seconds). The same is true on the iPod - I get the checkmark showing that I'm connected, but when I try to access any Internet services will get a pop-up box telling me that the Internet is not connected.
After going through pages and pages and pages of people struggling with similar issues on sites like this, and following suggestions like deleting my preference files, repairing permissions, zapping PRAM, creating new locations, changing IP addresses etc. I got no further. But since I had cloned my hard drive just before the upgrade from Snow Leopard to Mountain Lion (thank you SuperDuper), I can reboot into Snow Leopard, and everything still works fine. With that advantage, I copied and re-created EVERY SINGLE preference in the system preferences for Network and Internet sharing* from the Snow Leopard into the Mountain Lion system. (I even went so far as to create a network in Mountain Lion's prefs. with WEP encryption instead of the newer WPA just in case that would make any difference at all.) But even with identical settings on the Mini regardless of booting into Snow Leopard or Mountain Lion, Mountain Lion remains the same - no problem connecting with the network, but complete inability to access the Internet. A few days ago, hoping against hope that an upgrade to Mavericks might reset things into some sort of working mode, I tried that - but no better result.
(*) I note that the wifi heading in the preference panes has changed from "AirPort" in Snow Leopard to "WiFI" in Mountain Lion and Mavericks, but I'm assuming that's just a change Apple made in its terminology to avoid confusion with the external AirPort options.
I would appreciate any suggestions any of you could give. And I would ask that you specify whether any suggested changes are to be made on the originating Wi-Fi station (in this case the Mini), or the receiver (in this case the MacBook). Many of the threads I've read to date can be confusing simply because they're not specifying on which machine any suggested changes need to be made, and while I'm sure there's nothing that needs to be changed at the MacBook, please specify if I'm wrong.
Thanks again,

Greetings all,
(Tried this in the OSx forum with no answers, so I figured I'd try the MacMini community and this one.)
I've been reading my way toward blindness through countless threads, here and elsewhere, from countless people, having problem with Mountain Lion and Wi-Fi these last few days, but some are using Airport, some are using third-party Wi-Fi routers, some aren't really specifying what they're using, so I thought I'd be as specific as possible about my situation - and add the fact that everything is still working fine if I boot into a cloned backup using Snow Leopard.
===
So here's the situation. I have a Intel Mac Mini which I use as a Wi-Fi base station for a Intel PowerBook Pro and an iPod 5. The Mini has been running Snow Leopard, and the PowerBook had been upgraded to Mountain Lion a few months ago. Things were still working fine at that point - the PowerBook's shift from SL to ML didn't affect its connectivity as a 'receiver' at all. About a week ago however, I finally upgraded the Mini to Mountain Lion as well (so that I could install the current version of Adobe Lightroom) and lost my Wi-Fi Internet access.
When I turn Wi-Fi on at the PowerBook, the Mini's network is visible, and I get the solid Wi-Fi fan showing a full connection, but I cannot access the Internet (indicated by the exclaimation point inside the fan for the first few seconds). The same is true on the iPod - I get the checkmark showing that I'm connected, but when I try to access any Internet services will get a pop-up box telling me that the Internet is not connected.
After going through pages and pages and pages of people struggling with similar issues on sites like this, and following suggestions like deleting my preference files, repairing permissions, zapping PRAM, creating new locations, changing IP addresses etc. I got no further. But since I had cloned my hard drive just before the upgrade from Snow Leopard to Mountain Lion (thank you SuperDuper), I can reboot into Snow Leopard, and everything still works fine. With that advantage, I copied and re-created EVERY SINGLE preference in the system preferences for Network and Internet sharing* from the Snow Leopard into the Mountain Lion system. (I even went so far as to create a network in Mountain Lion's prefs. with WEP encryption instead of the newer WPA just in case that would make any difference at all.) But even with identical settings on the Mini regardless of booting into Snow Leopard or Mountain Lion, Mountain Lion remains the same - no problem connecting with the network, but complete inability to access the Internet. A few days ago, hoping against hope that an upgrade to Mavericks might reset things into some sort of working mode, I tried that - but no better result.
(*) I note that the wifi heading in the preference panes has changed from "AirPort" in Snow Leopard to "WiFI" in Mountain Lion and Mavericks, but I'm assuming that's just a change Apple made in its terminology to avoid confusion with the external AirPort options.
I would appreciate any suggestions any of you could give. And I would ask that you specify whether any suggested changes are to be made on the originating Wi-Fi station (in this case the Mini), or the receiver (in this case the MacBook). Many of the threads I've read to date can be confusing simply because they're not specifying on which machine any suggested changes need to be made, and while I'm sure there's nothing that needs to be changed at the MacBook, please specify if I'm wrong.
Thanks again,

HT1338 How do i get mountain lion when my system is pre snow leopard? Maybe 4 years old??

Cant get my mac to update, or it cant find any OS X updates. The system is old, pre snow leopard i think

Upgrade Paths to Snow Leopard, Lion, and/or Mountain Lion
You can upgrade to Mountain Lion from Lion or directly from Snow Leopard. Mountain Lion can be downloaded from the Mac App Store for $19.99. To access the App Store you must have Snow Leopard 10.6.6 or later installed.
Upgrading to Snow Leopard
You can purchase Snow Leopard through the Apple Store: Mac OS X 10.6 Snow Leopard — Apple Store (U.S.). The price is $19.99 plus tax. You will be sent physical media by mail after placing your order.
After you install Snow Leopard you will have to download and install the Mac OS X 10.6.8 Update Combo v1.1 to update Snow Leopard to 10.6.8 and give you access to the App Store. Access to the App Store enables you to download Mountain Lion if your computer meets the requirements.
     Snow Leopard General Requirements
       1. Mac computer with an Intel processor
       2. 1GB of memory
       3. 5GB of available disk space
       4. DVD drive for installation
       5. Some features require a compatible Internet service provider;
           fees may apply.
       6. Some features require Apple’s iCloud services; fees and
           terms apply.
Upgrading to Lion
If your computer does not meet the requirements to install Mountain Lion, it may still meet the requirements to install Lion.
You can purchase Lion by contacting Customer Service: Contacting Apple for support and service — this includes international calling numbers. The cost is $19.99 (as it was before) plus tax. It's a download. You will get an email containing a redemption code that you then use at the Mac App Store to download Lion. Save a copy of that installer to your Downloads folder because the installer deletes itself at the end of the installation.
     Lion System Requirements
       1. Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7,
           or Xeon processor
       2. 2GB of memory
       3. OS X v10.6.6 or later (v10.6.8 recommended)
       4. 7GB of available space
       5. Some features require an Apple ID; terms apply.
Upgrading to Mountain Lion
To upgrade to Mountain Lion you must have Snow Leopard 10.6.8 or Lion installed. Purchase and download Mountain Lion from the App Store. Sign in using your Apple ID. Mountain Lion is $19.99 plus tax. The file is quite large, over 4 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
     OS X Mountain Lion — System Requirements
       Macs that can be upgraded to OS X Mountain Lion
         1. iMac (Mid 2007 or newer) — Model Identifier 7,1 or later
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) —
             Model Identifier 5,1 or later
         3. MacBook Pro (Mid/Late 2007 or newer) — Model Identifier 3,1 or later
         4. MacBook Air (Late 2008 or newer) — Model Identifier 2,1 or later
         5. Mac mini (Early 2009 or newer) — Model Identifier 3,1 or later
         6. Mac Pro (Early 2008 or newer) — Model Identifier 3,1 or later
         7. Xserve (Early 2009) — Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
Are my applications compatible?
         See App Compatibility Table — RoaringApps.
     For a complete How-To introduction from Apple see Upgrade to OS X Mountain Lion.

How i can intall mountain lion on my 10.6.8 snow leopard on macbook pro

i got a problem i want install mountain lion on my mac but i dont know how to do it beacose i have see person on youtube tell you need a external hard drive for install it thats real? please help me

Welcome to Apple Support Communities
That's not necessary, but you should use the external disk to make a backup of your data.
First, if you aren't sure how to upgrade or you are happy with the OS X version you are using now, keep it. You may have problems after upgrading that may require steps that you don't know how to do. Also, note that Mountain Lion isn't compatible with PowerPC apps.
If you are decided to upgrade, first check that your computer is compatible > http://www.apple.com/osx/specs If so, open the App Store and purchase Mountain Lion.
While it's being downloaded, make a backup of your data onto an external disk with Time Machine, and check that your apps are supported > http://www.roaringapps.com
When the download finishes, the OS X Mountain Lion will appear, so follow the steps

Are the i5/i7 processors way better than the Core 2 Duo?

Currently travel with my MacBook, but it's heavy (Pro stays home). I'm considering replacing the MB with an Air with 4GB RAM/256GB HD and I'm looking at refurbs. Go with the new i5 or i7 or is the Core 2 close enough? Thanks.

Another part of my thought process is that it's probably better to buy the most recent hardware when one is spending this much as Apple does sometimes stop support for older products.
Apple will offer hardware support options either through them or an authorized reseller for 5-years after the machine is discontinued, it is 7-years in the state of California. From a software perspective, Apple will usually continue to offer security updates for an OS until it becomes the 2nd oldest in generation.
So for example, now we're on Lion, Leopard will fall off the radar.

I know if I want to update my 0S x.5 to Mountain Lion, I have to update to Snow Leopard and Lion first. Where do I find the Snow Leopard download?

I'm trying to upgrade my daughter's computer for college. She currently has OS 10.5.8. She needs to upgrade to Mountain Lion. I know I have to upgrade to Snow Leopard and Lion first. I can't find the download for either. Please help! I was in the site the other day and thought I saw a link, but now I can't find it.
Thanks.

There is no download for Snow Leopard and never was for the general public. Phone the Apple Store and buy it.
Purchasing Lion isn't necessary to get Mountain Lion, but you will need to run the Mac OS X 10.6.8 combo updater.
(68687)

Is the Macbook Pro Retina display better than the LED display on the new iMac that is coming out?

I am thinking of either buying the Macbook Pro retina display (15") or waiting for the iMac 27" display. I am mainly focusing on the display, so what is better?

vinay.sujan wrote:
Is the MacBook Pro Retina display resolution of 2880-by-1800 a strain on the eyes as I understand the higher the resolution the more strainful the screen can be to the eyes?
Well there are two or three causes of eyestrain with displays different people seem to have.
1: Small type/UI elements
2: Glossy screens
3: Flicker rate
1:
The higher pixel rate combined with the display set at the higher resolution is going to cause UI and type to be smaller and harder to see. In fact it's advised to set OS X to a lower resolouton so it upscales better to match the pixel of the higher display.
Reports coming in say watching HD 1920 x 1080 trailers on the anti-glare 17" is best as the pixel content matches the display almost fullscreen, where on the MBP-R it's upscaled and thus looks blurry.
HD content makers are NOT going to change all their video cameras to support 2880 x 1800 full screen, so in order to get a clearer image playing HD 1080 content, one will have to do so in a smaller window.
2:
The new MBP-R dispalys are 75% less glossy, but not 100% less glossy like the anti-glare models so this can still cause some people problems. This can be lowered to under 1%, however I'm suspecting to do so would be considered giving up a military advantage to China where Apple gets it products made.
3:
I don't know about the flicker rate if it's better or not on the MBP-R's than the previous screens.

Why is the saved JPG file much bigger than the original JPG file??

I used Image Processor in Bridge CS5 to open a jpeg, apply sharpening action and save as a jpeg. The bit size, color space and pixel dimensions are identical. However, when I save at Quality 12 I get a Jpeg file that is nearly DOUBLE the size of the original jpeg Only if I drop it to Quality 10 do I get a file that approximates, but doesn't equal, the original jpeg.
1) Isn't 12 the same as saying 100% and as such the file size should be the about the same?
2) why would it increase so much? Example about 6 mb to about 12mb???
Does this sound right? I am sure I am doing the steps and setting the parameters correctly. The action simply applies unsharp mask:
I can set the quality to 10 and get an approximate equivalent file size...but I want the higher quality of a 100%/12 setting.
WHAT AM I MISSING???
Thanks - Kevin

WHAT AM I MISSING???
The simple fact that JPEG is always a fully re-compressing format. Your newly created files bear no relationship to the original ones - no binary data structures are retained; the compression algorithm is always applied fresh upon the fully decoded original image and if you use different settings, the result is different. Moreover, since the initial compression artifacts become "valid pixels" once decoded, the successive compression has no way of knowing that they actually are "bad pixels" and those fine disturbances agfain result in different compression patterns. That is, after alll, why consecutive saves to JPEG will always degrade quality even at the best settings...
Mylenium

Why is the Log Area size much smaller than the log volume

I have been following up on an Early Watch report that has been generated for our production SCM 5.0 system running liveCache 7.6.02 Build 14. The alert says "The LOG volumes size in your system is too small. Recommendation: Configure LOG Volumes to at least 2 GB". There are two interesting things about this.
1) I have spent the last couple of days reading all the OSS Notes, and MaxDB documentation I could find, and this does not seem to be documented as a recommendation anywhere. Does this seem like a realistic recommendation without taking into account the level of change actifity?
2) There is a single log volume allocated with size 2,097,160 KB. In production LC10 and DBMGUI report this to be correct size under volume details, but only list the total log area size as 1,706,328 (81% of the volume size). We have a non-production environment with exactly the same size log volume, but it reports that the log area size is 2,032,008 KB (97% of the volume). What leads to these different amounts of wasted space, and is there any way of getting the database to start using it?
Thanks,
Mark

Hi Natalia,
I did read 869267, several times. It does not answer my questions which is why I posted here.
DBMGUI version = 7.6.00.25
DBMCLI commands for PL1 (Production)
> xinstinfo PL1
IndepData           : /sapdb/data
IndepPrograms       : /sapdb/programs
InstallationPath    : /sapdb/PL1/db
Kernelversion       : KERNEL    7.6.02   BUILD 014-123-152-175
Rundirectory        : /sapdb/data/wrk/PL1
> dbmcli -d PL1 -u control,control
dbmcli on PL1>db_state
OK
State
ONLINE
dbmcli on PL1>info log
OK
END
Name                            | Value
Log Mirrored                    = NO
Log Writing                     = ON
Log Automatic Overwrite         = OFF
Max. Size (KB)                  = 1706328
Backup Segment Size (KB)        = 699048
Used Size (KB)                  = 104640
Used Size (%)                   = 6
Not Saved (KB)                  = 104640
Not Saved (%)                   = 6
Log Since Last Data Backup (KB) = 0
Savepoints                      = 5210
Checkpoints                     = 0
Physical Reads                  = 2469115
Physical Writes                 = 15655616
Queue Size (KB)                 = 48000
Queue Overflows                 = 646
Group Commits                   = 98205
Waits for Logwriter             = 10957511
Max. Waits                      = 10
Average Waits                   = 0
OMS Log Used Pages              = 0
OMS Min. Free Pages             = 0
dbmcli on PL1>param_getvolsall
OK
LOG_MIRRORED                     NO
MAXLOGVOLUMES                    2
MAXDATAVOLUMES                   14
LOG_VOLUME_NAME_001              262145     F /sapdb/PL1/saplog/DISKL001
DATA_VOLUME_NAME_0001            524289     F /sapdb/PL1/sapdata/DISKD0001
DATA_VOLUME_NAME_0002            524289     F /sapdb/PL1/sapdata/DISKD0002
DATA_VOLUME_NAME_0003            524289     F /sapdb/PL1/sapdata/DISKD0003
DATA_VOLUME_NAME_0004            524289     F /sapdb/PL1/sapdata/DISKD0004
DATA_VOLUME_NAME_0005            524289     F /sapdb/PL1/sapdata/DISKD0005
DATA_VOLUME_NAME_0006            524289     F /sapdb/PL1/sapdata/DISKD0006
DATA_VOLUME_NAME_0007            524289     F /sapdb/PL1/sapdata/DISKD0007
DATA_VOLUME_NAME_0008            524289     F /sapdb/PL1/sapdata/DISKD0008
DATA_VOLUME_NAME_0009            1048577    F /sapdb/PL1/sapdata/DISKD0009
DATA_VOLUME_NAME_0010            1048577    F /sapdb/PL1/sapdata/DISKD0010
DATA_VOLUME_NAME_0011            1048577    F /sapdb/PL1/sapdata/DISKD0011
DATA_VOLUME_NAME_0012            1048577    F /sapdb/PL1/sapdata/DISKD0012
dbmcli on PL1>param_directget MAXCPU
OK
MAXCPU 12
dbmcli on PL1>param_directget MAX_LOG_QUEUE_COUNT
OK
MAX_LOG_QUEUE_COUNT     0
dbmcli on PL1>param_directget LOG_IO_QUEUE
OK
LOG_IO_QUEUE    6000
> xinstinfo SL1
IndepData           : /sapdb/data
IndepPrograms       : /sapdb/programs
InstallationPath    : /sapdb/SL1/db
Kernelversion       : KERNEL    7.6.02   BUILD 014-123-152-175
Rundirectory        : /sapdb/data/wrk/SL1
dbmcli on SL1>db_state
OK
State
ONLINE
dbmcli on SL1>info log
OK
END
Name                            | Value
Log Mirrored                    = NO
Log Writing                     = ON
Log Automatic Overwrite         = OFF
Max. Size (KB)                  = 2032008
Backup Segment Size (KB)        = 699048
Used Size (KB)                  = 3824
Used Size (%)                   = 0
Not Saved (KB)                  = 3824
Not Saved (%)                   = 0
Log Since Last Data Backup (KB) = 0
Savepoints                      = 1256
Checkpoints                     = 0
Physical Reads                  = 2178269
Physical Writes                 = 4969914
Queue Size (KB)                 = 16000
Queue Overflows                 = 21201
Group Commits                   = 643
Waits for Logwriter             = 751336
Max. Waits                      = 4
Average Waits                   = 0
OMS Log Used Pages              = 0
OMS Min. Free Pages             = 0
dbmcli on SL1>param_getvolsall
OK
LOG_MIRRORED                     NO
MAXLOGVOLUMES                    2
MAXDATAVOLUMES                   10
LOG_VOLUME_NAME_001              262145     F /sapdb/SL1/saplog/DISKL001
DATA_VOLUME_NAME_0001            262145     F /sapdb/SL1/sapdata1/DISKD0001
DATA_VOLUME_NAME_0002            262145     F /sapdb/SL1/sapdata2/DISKD0002
DATA_VOLUME_NAME_0003            1048577    F /sapdb/SL1/sapdata3/DISKD0003
DATA_VOLUME_NAME_0004            1048577    F /sapdb/SL1/sapdata4/DISKD0004
DATA_VOLUME_NAME_0005            783501     F /sapdb/SL1/sapdata1/DISKD0005
DATA_VOLUME_NAME_0006            783501     F /sapdb/SL1/sapdata2/DISKD0006
dbmcli on SL1>param_directget MAXCPU
OK
MAXCPU 4
dbmcli on SL1>param_directget MAX_LOG_QUEUE_COUNT
OK
MAX_LOG_QUEUE_COUNT     0
dbmcli on SL1>param_directget LOG_IO_QUEUE
OK
LOG_IO_QUEUE    2000
Thanks for the explaination of the reserved space for the Log Queue pages. This does explain why there is the difference between the two. I think we probably have our log segment size too large. As you can see we do get occasional log queue overflows. Do you suggest we increase the size of our log IO queue higher, and allocate more log volume space to compensate?
select * from SYSINFO.LOGSTATISTICS (on PL1)
1706328;334176;19;334176;19;1879;20305192;64109066;7806480;182151514;12;48000
DBMGUI Log Area Usage
Total Size: 2048.01 MB
Free Log Area: 1330.38 MB
Used Log Area: 335.96 MB
Unsaved Log Area: 335.96
Log since Last Data Backup: 0.00 MB
Thanks,
Mark

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