Free harddiskspace ... some tips ... some questions

my longest arch-installation is now about 1,5y old ... and / partition (without /home) is becoming full: 6GB full!!! (only system!) ... i admit, having a lot of things installed, but hey (!) that's really much for only / ...
so i had a look what takes so much space away ...
first i cleaned up the pacman cache:
pacman -Sc
this gave me about 2GB of free space ... :-) ... not bad --- maybe there should be a automatically cronjob in arch that cleans this about once a month ... per default --- that would keep / clean and small, and this would make the hdd r/w faster :-) (small effect but longterm-optimization)
then i cleaned the source-tarball cache for makepkg:
makepkg -c
... this gave me about 1.3GB of free space .. :-) getting better ...
the biggest file on the rest i had on / was:
/var/log/kernel --- 1.7GB big!
-> why is the kernel-log accumulated? don't we have a config where the log is started from new or looped after about 2 or 10MB? why not? how to do this? ... at least on SuSE my kernel log was never that big ... should i post a bug?

you really would like to have two OpenOffices or X-servers laying around?
It is a bit messy I think.
Actually unless you pacman -Sc you have ALL the version around from 0.0.1alpha to 20.10.1
Naturally I am not referring to all the package anyway. I do not mind at all if openoffice does not start or kde crash.
But if exim, Courier or apache are broken I get a bit worried on a production server.
My idea is something like this, during pacman normal upgrade ie of apache:
prev version: apache 2.0.0
inst. version: apache 2.0.1
The two above refer to the file in pacman cache directory
newer version: apache 2.0.2
Pacman download and install 2.0.2, then it delete 2.0.0 and keep 2.0.1.
Something like this already keep under control the size of the dir.
It is a kind of package rotation in the cache, a bit like log rotation.

Similar Messages

I was trying to free up some memory on my hard drive and now I don't have an Itunes icon. I may have deleted it from my applications. How do I get it back. I downloaded it but it says it was moved from my PDF, music is played on Quicktime player

I was trying to free up some memory from my startup disk and I may have accidently deleted the Itunes application. I still have a library if I go through finder. I can download Itunes but I'm not able to install it. All this and I still don't have enough space on my startup disk, but that's another whole question!
If I play a tune,it comes through quicktime player. What can I do?

Enchanted1 wrote:
All this and I still don't have enough space on my startup disk, but that's another whole question!
No, this should be the number one thing you are concerned about.
Until you get this sorted, there is a good chance you may simply lose everything.
Do you hav ean external drive?
If so copy the entire /Music/iTunes/ folder to the external drive.
Then you can delete /Music/iTunes/ empty the trash and recover this space.
Do this then Apple menu > Software update.
Restart the computer
Then post back.

Some question for Sun Java System

Dear all:
I use Sun Java System We Server 7.0 for my project.
But I have some question on SJSWS 7.0
My server runtime information
1. OS is RedHat Enterprise 3
2. memory: 2G
3. SJSWS version: 7.0 preview 3
My questions
Q1. The speed that download image is slower than the speed that run JSP page . The image's size to smaller than 5 KB. Is it possible to speed up download image
Q2. My machine has 2GB memory, The system use swap area always. I think it isn't enough of SJSWS 7.0. How much memory size that SJSWS 7.0?
Many thank for everybody

first off, please try the Update 1 release in stead of technology preview releases: http://www.sun.com/download/products.xml?id=467713d6
Q1> So I want to ask it is possible to display image and text at the same time like use Tomcat ?
there is nothing in the server end (whether it's Tomcat or any other web server) that affects how the content is displayed on the browser.
Q2>I detect The ram was used over 800M~1G by SJSWS7. My website has 80~150 user in workinghour
Are you seeing Web Server process measuring so much memory?
Q3> Is it possible that the admin server use SJSWS7U1 and some or all of node use SJSWS preview 3, because the server is running on line, I can't stop them for update server
No - you want to switch to U1 anyway, since it's a released version (and is absolutely FREE for production use).

Some questions for ressources provisionning.

Hello people.
I'm currently playing around with LDoms on a new brilliant shiny T5520 and I have some questions about.
My actual configuration is the following:
- 1 T5520 Server with 32 Gb RAM and a 8 cores 64 threads Niagara T2
- 4 SAS 143 Gb disks on controller 1.
The disk are mirrored using raidctl in two pairs of raid 1, c1t0d0 and c1t2d0.
The primary OS is installed on c1t0d0 and I plan to use ZFS for creating vdisks LDoms guests on c1t2d0.
I have access to a netapp but only with iscsi and nfs.
So, the questions:
- Does it make sense to use ZFS on hard mirrored disks ?
- Is it best to add the two disks non mirrored to my ZFS pool and backup snapshots on the netapp ?
- Does my LDoms needs more memory that I planned ? Each guest will have between 2 Gb and 4 Gb for the bigger. I will have, at the beginning 4 or 5 guests for testing / integration, LDAP / DNS services, Licences services, Web Portal, and, maybe, if I could convince my boss a little SPARC Gentoo Linux, just for fun :)
Thanks :)
PS: Forgive my poor English, I'm a French bas***d guy :)

You mean T5220, great machine anyway :)
- RAID hardware is supposed to be faster than ZFS, but ZFS offer more functionalities.
- you need both mirroring and backup, even if nice, ZFS snapshot cannot replace a backup software.
- Keep a free memory pool not allocated and ready to increase the RAM size of a LDOM (rebooting the LDOM will be necessary). And hum... use it to play with linux for sparcs :-)
Regards

Some questions with install paths and reporting

I have some questions that i would like to ask
The first is regarding the installation path of the silverlight client when it is published, where is it located, is there a way to customize your application so that the user can specify an install directory , or a way to update the web.config with
the install directory....
Second question is , in development I am able to create a report, with report viewer using the localhost address of the silverlight client server side. but when i publish it, the address is no longer found. Is there another way I can go about doing
a report of the data in my sliverlight client application ? if so can i get some suggestions , I do know about some of the 3rd party extensions but none of them that I know of are free and I do not have the means right now to get them....
this is all for a 2- tier Desktop silverlight client application.
any help would be appreciated.
Thanks
David.

I wanted to know if i can TELL lightswitch application to install when im running it after it being publised . or where it is installed to after first run of the application.....
as far as Reporting goes and as far as I know DEVEXPRESS no longer supports lightswitch so there is no way for me to get ahold of the xtra reports extension ... please update your knowledge base and offer another solution..
HI David,
Thanks for your response.
From your description above, I think this issue is related to your deployment procedure, you can also customize your deployment path. For this issue, I'd like to suggest you to check it again, you can refer to this article. See:
Deploy a Two-tier LightSwitch Application
If you want to use report extension in lightswitch application, you can learn relevant topics about report extension in Lightswitch forum.
Hope it helps you.Best regards,
Angie
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

Some questions about Skype Manager and Skype Conne...

Hallo,
I found one of your post:
That, if I have some questions I may contact with Contact our solutions team
Sadly that link wont work...
I have few questions and also I contacted with Microsoft support, but sadly they wasn’t able to help me. Only what they suggests, that I may contact with Skype Team trough to Forum, or Facebook...
So, I choose first one and maybe you can help me, or redirect my question !?
About my questions:
As I understand Skype for business is just name what contain two free software, like Skype manager and Skype connect. Also those are free, without charge ?
Also I read that there are two different accounts, like Premium and regular one. Premium contains some benefit. So, If I use that Skype for business manager system to I may or can add some premium accounts for some my staff and leave others with regular account ? I don’t have that manager systems installed jet, but what I read, I understand that I maybe just split credit - or is there way how I may also share regular and premium conots ?
Also, Right now my customers have 25 workers, but what - if soon my another customer also want to use Skype Service, and he have 50 - 100 workers ? Will be there special price for different amount of users on one firm ?
And at last, firm who I represent right now are using Elion VoiP (Elion, is Estonian ISP) service, trough to xLite program.
Sadly that one wont work properly, it will hack, or you cant hear other people and so on. With, Skype everything works fine. So, if he will starting to use Skype manger and will make account for every workers (sips) can he bound those sips with same VoiP numbers what he will use right now with Elion ? Or if not, is there some way how to redirect those numbers (to lose those numbers, is sadly out of question) ?
I hope, you can help me guy´s.
Best regards
Rainer

Tere Rainer,
indeed we don't have the solutions team offer any longer. Let me try to answer some of your questions here.
Skype Manager and Skype Connect itself are free of charge. But obviously you can purchase and distribute paid products via Skype Manager.
Yes, you can freely distribute Premium subscription to Manager group members and leave others without. You can do the same with all kind of Skype products, e.g. Skype numbers, calling subscriptions etc.
There are no discounts with Skype Manager purchases. It's a tool to simplify administration.
Unfortunately you cannot transfer numbers to Skype connect. For more details on which features are supported and how they work please have a look here: https://support.skype.com/en/faq/FA10549/what-is-skype-connect-and-how-does-it-work
I hope my answers could help a bit already.
Tervitustega Mustamäelt.
Follow the latest Skype Community News
↓ Did my reply answer your question? Accept it as a solution to help others, Thanks. ↓

Might buy an Apple TV - some questions.

I'm seriously considering the purchase of an Apple TV. The primary reason is that I want to digitize all of my DVDs and free up all the space they take up on my shelves. I also would like to be able to rent movies from iTunes directly from the television.
I have some questions since the Apple Store reps have been less than helpful:
1. I want the largest drive size I can get, which seems to be the 100GB. However, I have more than that in movies to rip. Can I attach a 1TB hard drive to the USB port on the back of the Apple TV for additional space, or will I need to store my ripped movies on the 1TB from a computer, and resync whatever 100GB worth I want at any given time on my Apple TV?
2. Can the Apple TV stream a video from a wirelessly connected computer, or only from it's own internal hard drive?
3. What video file formats can Apple TV work with? Is it QuickTime only, or can it also work with AVI, WMV, etc.?
4. Assuming the answer to #2 above is that it can only from it's own hard drive, and that Apple TV "syncs" the way an iPhone or iPod does in that it copies a media file to the device, I'm wondering about multiple libraries at this point. I have an older, pre-Intel iMac at home, and my primary computer is a MacBook Pro. It goes with me EVERYWHERE. Since it's a laptop, drive space is much more limited, and I'm not willing to carry a portable 1TB drive with me everywhere I go. Can iTunes and Apple TV sync music and photos stored in the laptop's iTunes library, but pull videos from the iMac's iTunes library? Or, am I out of luck on this one?
5. Any rumors as to when a larger-capacity Apple TV will come out? I will be woefully p*ssed off if I buy one only to have a 1/2 or 1TB Apple TV come out a few months later.
Cheers,
Dan

dantrimble wrote:
1. Can I attach a 1TB hard drive to the USB port on the back of the Apple TV for additional space,
no. the USB port has no end-user function.
dantrimble wrote:
2. Can the Apple TV stream a video from a wirelessly connected computer, or only from it's own internal hard drive?
yes it can stream from a wifi or ethernet computer.
dantrimble wrote:
3. What video file formats can Apple TV work with? Is it QuickTime only, or can it also work with AVI, WMV, etc.?
mpeg4 h.264 only. no AVI, WMV, divx etc etc
http://www.apple.com/appletv/specs.html
dantrimble wrote:
5. Any rumors as to when a larger-capacity Apple TV will come out? I will be woefully p*ssed off if I buy one only to have a 1/2 or 1TB Apple TV come out a few months later.
no rumours. besides rumour and conjecture are not permitted here (against Ts&Cs).

Some question about windows 7 and mini laptop

hi
i glad that i found this forum, i have the mini HP laptop 110 and i have some question
(i have intel atom 1.66 , 2G memory and windows 7 starter)
1. if i'll instal the windows 7 pro - is my performance will be smaller ?
2. what is the most light anti-virus that recommended for this mini laptop ?
3. what is the most light browser that recommended for this mini laptop ?
thank's in advance

Windows 7 is Windows 7 as far as the resources it consumes. So feel free to upgrade to 7 Pro and your performance should not take a hit. For light antivirus I recommend Avira. It is what I have on my own netbook. Lastly a good light browser is Opera.

Some questions about 4s the answers which i can`t find at now.

Hi all! I seen the manual, but have some questions.
Important for me:
Fonts notes - change except three in the settings?
The dialing buttons with one touch? Except now - "Phone - buttons"
Is there a group of contacts? On the sim card, I do not keep contact.
Can i rate a song in a standard player?
Can you give the name of the best player for FLAC format?
Sync photos in Itunes, indicates one folder, and you can specify all that are nested inside? so?
How do I know whether the information is sent (hidden) or packages gprs without my permission? At now I turned off not needed for me apps.
Can I change the capital letters on the keyboard in the messages to the normal small?
"Reminder" of the event calendar. Options: No, at the time of the event, for 5, 15, 30, for 1 hour, 2 hour .... 1 day, 2 days. Wow!? And where is the option for 3-4-5 hours? If I need it.
Too conglomeration and confusing menu Itunes. Intricate synchronization. I can not understand where to get my photos from my phone to PC (Win7 x64).
The battery is not recommended to fully discharge, right? It is better to charge when it near 20% or it`s don`t care?
Not quite clear things:
The maximum volume of the music can really mess up a rumor, it's amazing, you can limit the maximum mode in the settings, check with the monitor Senheiser HD215.
Free Appstore often not free or demo, ask for a fee, why mislead people is not clear!
Thank for answers!

Lawrence Finch Thank you very much for answers!
1-2. I am really forgot about apps in store. ))
3. It is strange that there are no groups in the phone, it's still a phone in the first place ))
4. I meant in the iphone. )) On the computer I have many years using a different program for music.
5. Hmm... flac is not video format.
6-7. Ok
8. I am talking about standart letters on the keyboard in the messages. Visually, they look like big letters, that I first met in the phone. In small letters ordinary phone as long as you do not choose a large and they vary in height.
9-10. Ok
11. ???
The battery is not recommended to fully discharge, right? It is better to charge when it near 20% or it`s don`t care?
Not quite clear things:
12. I checked the maximum volume with my Senheiser HD215 and it`s a very very loud. What is strange that you can limit the maximum volume mode in the settings. This maximum volume limit seems to me strange.
13. Ok. But I was faced with a situation where there is an update itunes says, and as detailed a description of the program, but not a change in her. Strange.

Some question about what bdb can do?

1.I want to use it to index one or more field, and search it like this ' List<Object> res = primaryIndex.get("aeo*"); '
2.I want to list all primaryIndex by Cursor, and will it become slow or crush when there are lots of threads are listing.(ex: primaryIndexs are more than 10,000,000)
3.I heard if use SecondaryIndex, insert will become very slow when we have to many primaryIndexs (ex:more than 60,000,000)
I will do some test after these weekend, and some suggestion will make it more efficient.
thank you for read this.

Hi,
Some suggestions for your question:
1. I think you prefer to using DPL, right? You can refer to the DPL API (http://download.oracle.com/docs/cd/E17277_02/html/java/com/sleepycat/persist/package-summary.html) for how to index java object with multiple fields.
2. Do you mean you will create more than 10,000,000 PrimaryIndexes to handle the data? What kinds of operations do these huge number of PrimaryIndexes will take? Do they only do read operation? Or do they do both read and write operations? If the latter, it does cause concurrency problem. I think you can configure the isolation levels to improve your performance. Please refer to isolation levels (http://download.oracle.com/docs/cd/E17277_02/html/TransactionGettingStarted/isolation.html).
3. The same with question 2. With too many PrimaryIndexes, doing write operation will cause serious concurrency problem.
Another suggestion is that, before you doing your testing, it is worth increasing your jvm cache size, and use enhanced DPL (http://download.oracle.com/docs/cd/E17277_02/html/java/com/sleepycat/persist/model/ClassEnhancer.html).
There are some other suggestions for JE's performance in FAQ web page(http://www.oracle.com/technetwork/database/berkeleydb/je-faq-096044.html) under "Performance" section.
I think your tests for BDB JE is very interesting. We also look forward your testing results. Please keep us informed of your testing, and feel free to post your further questions here.
Thanks.
Eric
BDB JE Team

Some questions regarding the iPhone app

Hi, I have an iPhone 6 Plus using the app version as I don't own a computer, and am currently on my second day of the 7-day Premium Free Trial period. I just have some questions I'd like to ask about it:
1) I have an extremely large music library, and I'm pleased to see that Spotify has most of what I own. However, for the past several hours it refuses to let me add any new artists/albums/songs to my lists, and when a new album is added, it will vanish from the artist list the next time I turn on my phone. At the same time, I actually tried deleting one of my artists from my Artist list, only to have to reappear the same way. Is this an error, or is there a limit of how much content you can add to your lists?
2) What happens when the 7-day trial period is over? Does it just start automatically billing me, or does it give the option of opting out?
Thanks for your help in advance. :)

Hello , Welcome to the community! :)
I am unaware of a bug like that, is their any chance that it could be fixed by now
If you gave payment info/subscribed via itunes then yes it will start billing you, you stop this by folowing these steps:
Canceling your subscription reverts your account to the Free level.
Go to the subscription page. (Note: If you don’t know your password, go here to reset it.)
Under Subscription and payment, click cancel your subscription.
Select a reason (select Other reasons if you're canceling for a promotion). Click CONTINUE.
Click CANCEL MY SUBSCRIPTION.
Enter your password in the password field. Click CANCEL SPOTIFY PREMIUM SUBSCRIPTION.
Your subscription page now shows the date you will revert to our Free ad-based service. We hope you decide to upgrade again!
Note: If you subscribed through any other company than Spotify, you need to contact that company to cancel. If your subscription is through iTunes, please see Apple's instructions for canceling.
I hope this helped :)

E61i - Some question.

Hi all.
I got some questions.
1. No "Activate in selected days" in the alarm ?.
2. No auto key lock ?.
3. No timer and stopwatch ?.
4. No "birthday" entry in the calender ?.
5. Can i set hotmail int the email settings ?.
All of those (except 5) i had in my old Nokia (6131), where did it all go ?.
I had to install "Handy tools" to get it all, weird.
Any build-in option i missed ?
Thank You.
Nokia: 5140 => 6131 => E61i => E90 => N95 8GB' => E71 => E75 => N900

All S60 miss this, but handy clock and autolock (free) solves this problem for you.
I for one need good calculator! Just cant find any for e61i...
Build in calc says it can't calculate some number (it's wont fit on screen !?!?). Big screen and no room for few numbers.

I need some questions anserd PLEASE HELP

yo all, i have a 30gig ipod video and i have some questions which are hacking at my brain. i hope i can get some ansers
#1 apparantly, when i update itunes it wipes my libary clean? is this true?
#2 E.G:i go to my friends house, to get some songs, but he has a mac, and i have a pc, and when you download songs from your friends mac.. apparantly it wipes all your songs
since you have a pc and he has a mac! T OR F?
#3 when i connect my ipod it updates, but when itunes says "Ipod update complete, OK to disconnect" my ipod still says "Do not disconnect" is it really ok to disconnect?
#4 i have about 450MB used up on my ipod..and theres a thousand MB to a GB, correct? in itunes it says i have 26GB left when i havent even use up one!(although, i have itunes 6..and theres 6.3 or something..but i dont want to update due to question 1#!)

Hello ipodsrock_thecasba,
#1 Absolutely not true
#2 False. The songs are not being wiped because you have a pc and he has a mac. The songs are being wiped because you say yes to the message that pops up saying "this ipod is linked to another library, do you want to link it to this library?"
Read this for tips on using your ipod with multiple computers:
http://docs.info.apple.com/article.html?artnum=61675
#3 Not always. Could be another music program on your computer capable of reading the ipod is doing just that. Could be an antivirus program is scanning the ipods disk. If you can feel/listen to the ipod and the disk is not being accessed/spinning it should be safe to disconnect (you may need to reset the ipod afterwards).
http://docs.info.apple.com/article.html?artnum=93492
#4 Read this (particularly the third section "One more thing about iPod disk size"):
http://docs.info.apple.com/article.html?artnum=60955
Hope that helps
EDIT: Dude calm down. 8 minutes after posting your question and you are screaming for answers. I almost wish now that I had not bothered to take the time to even try to help.

Some Questions about NI-6602

Hello!!
I have some question about NI-6602.
1.What is the difference between Port and Line ?
What's the difference of Line nad Portin these functionIG_In_Line,DIG_Out_Prt,DIG_Line_Config,DIG_In_Prt,DIG_Out_Prt,DIG_Prt_Config
2.If I would like to apply gate to my counter application, is it possible that we give the gate signal via software?
Or I need to connect signal from hardware? If hardware is needed, is it possible to apply another counter's output as my counter's gate input?
3.Can we apply gate to this fuction ND_PULSE_TRAIN_GNR?
4.Can we detect the counter's source is High or Low ?Is there any fuction to read out the source status?

Hello,
Thank you for contacting National Instruments.
"1.What is the difference between Port and Line?"
A Port is a collection of lines. Usually 8 lines to a port.
"What's the difference of Line nad Portin these function DIG_In_Line, DIG_Out_Prt, DIG_Line_Config, DIG_In_Prt, DIG_Out_Prt, DIG_Prt_Config"
These functions either perform an output or input, or configure your digital ports and lines. Please see the Traditional NI-DAQ Function Reference Help found under Start >> All Programs >> National Instruments >> NI-DAQ >> Traditional NI-DAQ Function Reference Help for more information on these functions.
"2.If I would like to apply gate to my counter application, is it possible that we give the gate signal via software? Or I need to connect signal from hardware? If hardware is needed, is it possible to apply another counter's output as my counter's gate input?"
You can apply a gate signal from software. For example you can use the 6602's Timebase to gate your counter during pulse measurement applications. You can also route a counter's output to the gate of another counter internally. Look up Select_Signal in the Function Reference Help for more details.
"3.Can we apply gate to this function ND_PULSE_TRAIN_GNR?"
I am not sure what you are asking here. ND_PULSE_TRAIN_GNR is a parameter used in the GPCTR_Set_Application function to set up a counter for pulse generation. Please see the page titled "application = ND_PULSE_TRAIN_GNR: GPCTR_Set_Application" in the Function Reference Help more more information about this parameter.
"4.Can we detect the counter's source is High or Low ?Is there any fuction to read out the source status?"
There is no function to read the state of the source pin. You will need to route the source pin to a PFI line and perform a digital read on that line.
I hope this answers your questions. Please feel free to reply if you have any further questions.

Hi team , I have some questions/Problem for my product apple (iPad,iPhone) , I want to employee speak and type thai language

Hi team , I have some questions/Problem for my product apple (iPad,) , I want to employee that can speak or response me in thai language
1. ผม อาคเนย์ พำนักอยู่ประเทศไทย กรุงเทพฯ มีปัญหาสอบถาม ดังต่อไปนี้
- กระผมได้ทำการตัดบัตร เครดิต เพื่อซื้อเกมส์ผ่าน itune store ผ่าน apple itune ID : misskor.yaprom@*** เพื่อซื้อเกมส์ Eleves Realm ในวันที่18 ก.ค. 56 เวลา 17.07น. ซึ่งทางบัตรเครดิตได้แจ้งเรียกเก็บเงินมายอดเงิน 39.99$ ซึ่งในระบบจริงๆ ทางกระผมต้องการตัดในยอด 99.99$ แต่พอได้ประสานงานไปยังธนาคาร ได้รับการแจ้งกลับมาว่า ได้ทำการตัดบัตรในยอดเงิน 39.99$ ซึ่งในความเป็นจริงนั้น กระผมไม่ได้สั่งซื้อเกมส์ในยอด 39.99$ ซึ่งในยอด 99.99$ นั้นพยายามตัดในระบบบัตรเครดิตอยู่ แต่ทางกระผมได้ยืนยันกลับไปว่าไม่ให้ระบบตัดนะครับ เพราะว่าเนื่องจากมีปัญหาในการชำระเงินระหว่าง Apple itune store อยู่
- ทั้งนี้ขอให้ทางเจ้าหน้าที่ประสานงานตรวจสอบ apple itune ID : misskor.yaprom@*** เพื่อซื้อเกมส์ Eleves Realm ตามที่ได้ให้รายละเอียดโดยด่วนว่าเป็นเพราะว่าระบบมีปัญหาหรือว่ามีอะไรเกิดขึ้นในข ั้นตอนการชำระเงินครับ
รบกวนประสานงานกลับมายังกระผม อาคเนย์ ที่หมายเลขโทรศัพท์มือถือ +**** / reply feedback email : lekod1@*** โดยด่วน ในวันศุกร์ที่ 19 ก.ค. 2556 ครับ
ขอบคุณครับ
อาคเนย์ อุดปิน
กด
<Edited By Host>

Google translation:
พนักงานของ iTunes Store จะไม่ได้อ่านข้อความในเว็บบอร์ดนี้ ถ้าคุณต้องการความช่วยเหลือสำหรับปัญหาที่มีใน iTunes Store, คุณจะต้องติดต่อกับพวกเขาผ่านทางแบบฟอร์มเว็บนี้:
http://www.apple.com/emea/support/itunes/contact.html

I have some questions regarding setting up a software RAID 0 on a Mac Pro

I have some questions regarding setting up a software RAID 0 on a Mac pro (early 2009).
These questions might seem stupid to many of you, but, as my last, in fact my one and only, computer before the Mac Pro was a IICX/4/80 running System 7.5, I am a complete novice regarding this particular matter.
A few days ago I installed a WD3000HLFS VelociRaptor 300GB in bay 1, and moved the original 640GB HD to bay 2. I now have 2 bootable internal drives, and currently I am using the VR300 as my startup disk. Instead of cloning from the original drive, I have reinstalled the Mac OS, and all my applications & software onto the VR300. Everything is backed up onto a WD SE II 2TB external drive, using Time Machine. The original 640GB has an eDrive partition, which was created some time ago using TechTool Pro 5.
The system will be used primarily for photo editing, digital imaging, and to produce colour prints up to A2 size. Some of the image files, from scanned imports of film negatives & transparencies, will be 40MB or larger. Next year I hope to buy a high resolution full frame digital SLR, which will also generate large files.
Currently I am using Apple's bundled iPhoto, Aperture 2, Photoshop Elements 8, Silverfast Ai, ColorMunki Photo, EZcolor and other applications/software. I will also be using Photoshop CS5, when it becomes available, and I will probably change over to Lightroom 3, which is currently in Beta, because I have had problems with Aperture, which, until recent upgrades (HD, RAM & graphics card) to my system, would not even load images for print. All I had was a blank preview page, and a constant, frozen "loading" message - the symbol underneath remained static, instead of revolving!
It is now possible to print images from within Aperture 2, but I am not happy with the colour fidelity, whereas it is possible to produce excellent, natural colour prints using its "minnow" sibling, iPhoto!
My intention is to buy another 3 VR300s to form a 4 drive Raid 0 array for optimum performance, and to store the original 640GB drive as an emergency bootable back-up. I would have ordered the additional VR300s already, but for the fact that there appears to have been a run on them, and currently they are out of stock at all, but the more expensive, UK resellers.
I should be most grateful to receive advice regarding the following questions:
QUESTION 1:
I have had a look at the RAID setting up facility in Disk Utility and it states: "To create a RAID set, drag disks or partitions into the list below".
If I install another 3 VR300s, can I drag all 4 of them into the "list below" box, without any risk of losing everything I have already installed on the existing VR300?
Or would I have to reinstall the OS, applications and software again?
I mention this, because one of the applications, Personal accountz, has a label on its CD wallet stating that the Licence Key can only be used once, and I have already used it when I installed it on the existing VR300.
QUESTION 2:
I understand that the failure of just one drive will result in all the data in a Raid 0 array being lost.
Does this mean that I would not be able to boot up from the 4 drive array in that scenario?
Even so, it would be worth the risk to gain the optimum performance provide by Raid 0 over the other RAID setup options, and, in addition to the SE II, I will probably back up all my image files onto a portable drive as an additional precaution.
QUESTION 3:
Is it possible to create an eDrive partition, using TechTool Pro 5, on the VR300 in bay !?
Or would this not be of any use anyway, in the event of a single drive failure?
QUESTION 4:
Would there be a significant increase in performance using a 4 x VR300 drive RAID 0 array, compared to only 2 or 3 drives?
QUESTION 5:
If I used a 3 x VR300 RAID 0 array, and installed either a cloned VR300 or the original 640GB HD in bay 4, and I left the Startup Disk in System Preferences unlocked, would the system boot up automatically from the 4th. drive in the event of a single drive failure in the 3 drive RAID 0 array which had been selected for startup?
Apologies if these seem stupid questions, but I am trying to determine the best option without foregoing optimum performance.

Well said.
Steps to set up RAID
Setting up a RAID array in Mac OS X is part of the installation process. This procedure assumes that you have already installed Mac OS 10.1 and the hard drive subsystem (two hard drives and a PCI controller card, for example) that RAID will be implemented on. Follow these steps:
1. Open Disk Utility (/Applications/Utilities).
2. When the disks appear in the pane on the left, select the disks you wish to be in the array and drag them to the disk panel.
3. Choose Stripe or Mirror from the RAID Scheme pop-up menu.
4. Name the RAID set.
5. Choose a volume format. The size of the array will be automatically determined based on what you selected.
6. Click Create.
Recovering from a hard drive failure on a mirrored array
1. Open Disk Utility in (/Applications/Utilities).
2. Click the RAID tab. If an issue has occurred, a dialog box will appear that describes it.
3. If an issue with the disk is indicated, click Rebuild.
4. If Rebuild does not work, shut down the computer and replace the damaged hard disk.
5. Repeat steps 1 and 2.
6. Drag the icon of the new disk on top of that of the removed disk.
7. Click Rebuild.
http://support.apple.com/kb/HT2559
Drive A + B = VOLUME ONE
Drive C + D = VOLUME TWO
What you put on those volumes is of course up to you and easy to do.
A system really only needs to be backed up "as needed" like before you add or update or install anything.
/Users can be backed up hourly, daily, weekly schedule
Media files as needed.
Things that hurt performance:
Page outs
Spotlight - disable this for boot drive and 'scratch'
SCRATCH: Temporary space; erased between projects and steps.
http://en.wikipedia.org/wiki/StandardRAIDlevels
(normally I'd link to Wikipedia but I can't load right now)
Disk drives are the slowest component, so tackling that has always made sense. Easy way to make a difference. More RAM only if it will be of value and used. Same with more/faster processors, or graphic card.
To help understand and configure your 2009 Nehalem Mac Pro:
http://arstechnica.com/apple/reviews/2009/04/266ghz-8-core-mac-pro-review.ars/1
http://macperformanceguide.com/
http://www.macgurus.com/guides/storageaccelguide.php
http://www.macintouch.com/readerreports/harddrives/index.html
http://macperformanceguide.com/OptimizingPhotoshop-Configuration.html
http://kb2.adobe.com/cps/404/kb404440.html

Free harddiskspace ... some tips ... some questions

Similar Messages

Maybe you are looking for