ARC and ZFS

A question about where the ARC cache resides in a Sun ZFS 7320 Storage Appliance? Does it run in the cache of the storage head or the RAM of the node?

Thanks for the reply. I see you are pointing to the physical 'read' hardware in the storage head or readzilla. I believe this is where L2ARC storage is maintained. My question is about the Adaptive Replacement Cache (ARC). I am confused about where this and the ghost lists are maintained. References in the various blogs talk about main memory/system memory, which memory is this - the memory in the server node or the memory in the storage head - say the ZFS 7320 Storage as a standalone device or the ZFS 7320 Storage Appliance embedded in an Exalogic.

Similar Messages

Real circles, arcs and bigger art board

1.) I work with large format graphics and CS3 AI's limitation of around 120" x 120" makes my work difficult. Other graphic applications that are much less mature than AI have almost infinite art boards to work with. I would also be nice to be able to work in scales, too. It is laborious to have to constantly be working at half-, quarter-, or eighth-scale. I wear out a calculator and the possibility for errors shoots through the roof. Lastly, some things just don't scale well. In short, AI is biased toward those whose output is magazine sized. Since it is essentially the only graphics application left standing it should realize that many of its customers need to work is something larger than ledger. At the very least they should have the same limitation for both ID and AI. At present an 120" AI file cannot be placed in ID which has a limit of around 111". Some "suite."
2.) Make text compatible between AI and ID. As I recall, at present (CS3) the text from one does not conserve its formatting when placed into another. I'd like to have the option.I have to use MSWord as a go-between. Again, some "suite."
3.) If AI is going to be a complete vector art application perhaps it should start with the ability to draw simple shapes. At present, it can only draw X,Y defined vector paths. The "circle" tool only draws circle-shaped paths. Its size is controlled by changing the X and Y dimensions of an imaginary square into which it is inscribed. A true circle is drawn and manipulated via its center placement, its radius and its diameter---at a minimum! In AI none of these controls are available. Remember compasses from the old drawing board days? At the very least AI should emulate this ancient tool. I don't remember anyone ever trying to draw a circle by drawing a square first and trying to place four arcs in the corners. It is crazy.
The same is true for arcs. AI only draws crude arc-like paths. In fact, it is even less accurate for arcs than it is for circles. Going back to simple definitions, an arc is a series of points equidistant from a single point. AI's "arc" tool does not draw anything close to this unless you hold down the shift key. Then it draws the arc from one of the end points. This may be helpful sometimes, but 99 percent of the time if you want to draw an arc you are going to want to start at the center and draw from end point to end point. AI acts as if the center does not exist! It is not even indicated; these are not arcs! Lastly, much like a true circle, an arc is manipulated by its center point placement, its radius and its included angle, and/or the location of its end points. None of these are available in CS3. As I said, it only draws X,Y vector paths--very, very primitive.
The ability to draw fundamental shapes correctly and easily should be the first thing a vector illustration program tackles. It is absurd that it is still missing after 13 versions. Let's hope version 14 finally gets it right. And please don't mention CAD tools. The tools I'm taking about are basic, basic, basic tools.
MGuilfoile

I absolutely agree.
I don't ever recall using a program that created arcs and circles like AI. A circle appears simply to be 4 arcs of 90 degrees. You cannot change the start and end angles, either by dragging the points or by dialog input. I'm not an illustrator by training - I'm a technical writer but I've been doing line illustrations, exploded views, etc. for almost 20 years using various vector-graphics programs. Every program I've used allows you to alter an arc, elipse or both, NOT just size and move!!
I'm only evaluating AiCS4 for possibly migrating from FreeHand. In Freehand, you cannot change the angle of an arc but you can with elipse. Even the limited graphics package in FrameMaker allows you to define the start/end angles of an arc (not an elipse) via the properties dialog.
I'm new to AI and I'm just astonished that the arc and elipse tools have been so neglected over the long life-cycle of the program.

How do I join together arcs and lines in a single Shape???

I am out of my depth, I am probably missing something spectacular .... I need to construct a shape from arcs and lines to get something like this, only closed:
Like a winding river sort of thing... I do not need to draw this I need to have this shape and its area available to me.... How do I join these two arcs and two lines into a shape from which I can find - area.contains(xy.getX(), xy.getY()); , preatty please?
here is the code that causes numerous errors:
import java.awt.*;
import java.awt.Graphics.*;
import java.awt.Graphics2D.*;
import java.awt.geom.RectangularShape.*;
import java.awt.geom.Arc2D;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.Area;
import java.awt.geom.GeneralPath;
class MyShapes //extends Arc2D
public static Arc2D outerOne;
public static Arc2D innerOne;
public static Line2D upLine, bottomLine;
public static Area area = new Area();
public MyShapes(double[] upper, double [] lower)
outerOne.setArc(upper[0], upper[1], upper[2], upper[3], upper[4], upper[5], (int)upper[6]);
//                         x,          y,               w,          h,               OA,      AA, int OPEN =1
innerOne.setArc(lower[0], lower[1], lower[2], lower[3], lower[4], lower[5], (int)lower[6]);
//outerTR=this.makeClosedShape(outerTopRightArc,middleTopRightArc);
upLine     = new Line2D.Double(outerOne.getX(),outerOne.getY(),innerOne.getX(),innerOne.getY());
bottomLine = new Line2D.Double(outerOne.getX()+outerOne.getWidth(),outerOne.getY()+outerOne.getHeight(),innerOne.getX()+innerOne.getWidth(),innerOne.getY()+innerOne.getHeight());
area = this.joinAll(outerOne,innerOne, upLine, bottomLine);
private Area joinAll(Arc2D out, Arc2D in, Line2D one, Line2D two)
GeneralPath joiner = new GeneralPath(out);
joiner.append(in, true);
joiner.append(one, true);
joiner.append(two, true);
Area temp = new Area(joiner);
return temp;
public boolean isInArea(Point xy)
return area.contains(xy.getX(), xy.getY());
public boolean isItClosed()
return area.isSingular();
Thanks

Glad to hear you find what was wrong. Still, it doesn't the main problem : why is that method crashing?
Here is what I've done in the mean time. See if it fits your purpose.import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.*;
public class MyShapes {
     private Arc2D outerOne;
     private Arc2D innerOne;
     private Shape line1;
     private Shape line2;
     public MyShapes(double[] upper, double[] lower) {
          outerOne = new Arc2D.Double(upper[0],
                                             upper[1],
                                             upper[2],
                                             upper[3],
                                             upper[4],
                                             upper[5],
                                             0);
          innerOne = new Arc2D.Double(lower[0],
                                             lower[1],
                                             lower[2],
                                             lower[3],
                                             lower[4],
                                             lower[5],
                                             0);
          line1 = new Line2D.Double(outerOne.getStartPoint().getX(),
                                          outerOne.getStartPoint().getY(),
                                          innerOne.getStartPoint().getX(),
                                          innerOne.getStartPoint().getY());
          line2 = new Line2D.Double(outerOne.getEndPoint().getX(),
                                          outerOne.getEndPoint().getY(),
                                          innerOne.getEndPoint().getX(),
                                          innerOne.getEndPoint().getY());
     public void paint(Graphics2D aGraphics2D) {
          aGraphics2D.draw(outerOne);
          aGraphics2D.draw(innerOne);
          aGraphics2D.draw(line1);
          aGraphics2D.draw(line2);
     public static void main(String[] args) {
          double [] XO= {56, 58, 400, 280, 90, 90};// outter arc
          double [] XI={114, 105, 300, 200, 90, 90}; // inner arc
          final MyShapes myShapes = new MyShapes(XO, XI);
          JPanel panel = new JPanel() {
               protected void paintComponent(Graphics g) {
                    super.paintComponent(g);
                    Graphics2D g2 = (Graphics2D)g;
                    myShapes.paint(g2);
          final JFrame frame = new JFrame("Test shape");
          frame.addWindowListener(new WindowAdapter() {
               public void windowClosing(WindowEvent e) {
                    System.exit(0);
          frame.setContentPane(panel);
          SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                    frame.show();
}

Max File size in UFS and ZFS

Hi,
Any one can share what is max file size can be created in Solaris 10 UFS and ZFS ?
What will be max size file compression using tar,gz ?
Regards
Siva

from 'man ufs':
A sparse file can have a logical size of one terabyte.
However, the actual amount of data that can be stored
in a file is approximately one percent less than one
terabyte because of file system overhead.
As for ZFS, well, its a 128bit filesystem, and the maximum size of a file or directory is 2 ^64^ bytes, which i think is somewhere around 8 exabyte (i.e 8192 petabyte), even though my calculator gave up on calculating it.
http://www.sun.com/software/solaris/ds/zfs.jsp
.7/M.
Edited by: abrante on Feb 28, 2011 7:31 AM
fixed layout and 2 ^64^

SunCluster, MPXIO, Clariion and ZFS?

Hi,
we have a 2 node cluster (SunCluster 3.2). Our Storage is a EMC Clariion CX700. We have created some zpools and integrated them into the suncluster.
We cannot use PowerPath 5.1 and 5.2 for this because sun cluster and zfs is not supported in this environment. So, we want to use mpxio. Our question is, if there is a SP-Failover at the clariion, does mpxio support this and everything works fine without any problems?
Thanks!
Greets
Björn

Hi,
What you need todo is the following.
edit this file /kernel/drv/scsi_vhci.conf
follow the directions of this link
http://www.filibeto.org/sun/lib/nonsun/emc/SolarisHostConectivity.pdf?bcsi_scan_1BD4CB6F2E356E40=0&bcsi_scan_filename=SolarisHostConectivity.pdf
regards
Filip

HASP and ZFS

Hi All,
I'm using clustered zones and ZFS and I get these messages below.
Is this something that I need to be worried about ?
Have I missed something when I created the resource which actually
is configured "by the book"?
Will HAStoragePlus work as expected?
Can I somehow verify that the zpool is monitored?
Apr 4 15:38:07 dceuxa2 SC[SUNW.HAStoragePlus:4,dceux08a-rg,dceux08a-hasp,hastorageplus_postnet_stop]: [ID 815306 daemon.warning] Extension properties GlobalDevicePaths and FilesystemMountPoints are both empty.
/Regards
Ulf

Thanks for Your quick replies.
The HASP resource was created with -x Zpools="orapool1,orapool2"
and all other properties is at their defaults.
part of clrs show -v...
Resource: dceux08a-hasp
Type: SUNW.HAStoragePlus:4
Type_version: 4
Group: dceux08a-rg
R_description:
Resource_project_name: default
Enabled{dceuxa1:dceux08a}: True
Enabled{dceuxa2:dceux08a}: True
Monitored{dceuxa1:dceux08a}: True
Monitored{dceuxa2:dceux08a}: True
FilesystemMountPoints: <NULL>
GlobalDevicePaths: <NULL>
Zpools: orazpool1 orazpool2
(Solaris10u3/Sparc SC3.2, EIS 27-Feb)
/BR
Ulf

I have CS6. When I fix a JPEG or Raw photo in ARC and send it to CS6 to put finishing touches, the

I have CS6. When I fix a JPEG or Raw photo in ARC and send it to CS6 to put finishing touches, the photo never shows the changes that I have done.

What do you mean by "send it to CS6" ? Do you click on the Open button in ACR to open it in Photoshop?
What platform, Mac or Win? What exact version of Photoshop CS6, of ACR and of the OS?
Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
http://forums.adobe.com/thread/419981?tstart=0
Thanks!

ZfD and ZfS on same server? Centralized monitoring of disk usage? ZfS 6.5 or 7?

We have ZfD running on one server for approx. 600 users (Sybase db on
NetWare 6.5).
We use it for; WS registration, WS Inventory, Application Mgmt, NAL
database, Imaging)
I have a mixture of Microsoft Windows and Novell NetWare servers.
Approximately:
30 Microsoft Windows servers (2000 and 2003)
10 Novell NetWare servers (NW 5.1 SP7 and NW 6.5 SP3)
Q1: Is it feasable to have the ZfS backend running on the same server that
hosts the ZfD backend ?
We are trying to find a way to monitor all server for disk usage. Ideally
we want to get a view/report of all servers (regardless of Novell or
Microsoft) to see where each disk is at with regards to available space and
also see historical trends for disk usage.
Q2: Can ZfS do this for us? We are licensed to use it but so far we've
only implemented the ZfD 6.5.2 and are quite please with the results.
Q3: Also, since we are licensed to use the latest ZfD and ZfS, any reason
to implement ZfS 7 instead of ZfS 6.5? We know that ZfD 7 is pretty much
the same as ZfD 6.5.2 so we've decided to hold back on this upgrade. If we
move forward with ZfS, I'm guessing that sticking with same version being
used with ZfD is a good idea?
Thanks for any answers!
Marc

Marc Charbonneau,
>Q1: Is it feasable to have the ZfS backend running on the same server that
>hosts the ZfD backend ?
>
>We are trying to find a way to monitor all server for disk usage. Ideally
>we want to get a view/report of all servers (regardless of Novell or
>Microsoft) to see where each disk is at with regards to available space and
>also see historical trends for disk usage.
Yes, it's very workable with both ZFD and ZFS on the same box. ZFS can
monitor any of these features. It uses SNMP to do this on both netware and
windows.
>
>Q2: Can ZfS do this for us? We are licensed to use it but so far we've
>only implemented the ZfD 6.5.2 and are quite please with the results.
>
Glad to hear ZFD is working for you.
>Q3: Also, since we are licensed to use the latest ZfD and ZfS, any reason
>to implement ZfS 7 instead of ZfS 6.5? We know that ZfD 7 is pretty much
>the same as ZfD 6.5.2 so we've decided to hold back on this upgrade. If we
>move forward with ZfS, I'm guessing that sticking with same version being
>used with ZfD is a good idea?
Yes, although ZFS7 subscribers can run on XP, but I don't think 6.5 can.
In a way, zfd and zfs are very separate and the patches do not have to
match, but if you can keep it the same, than do. :)
Hope that helps.
Jared
Systems Analyst at Data Technique, INC.
jjennings at data technique dot com
Posting with XanaNews 1.17.6.6 in WineHQ
Check out Novell WIKI
http://wiki.novell.com/index.php/IManager

ZfD and ZfS on same server? Centralized monitoring of disk usage? ZfD 6.5 or 7?

We have ZfD running on one server for approx. 600 users (Sybase db on
NetWare 6.5).
We use it for; WS registration, WS Inventory, Application Mgmt, NAL
database, Imaging)
I have a mixture of Microsoft Windows and Novell NetWare servers.
Approximately:
30 Microsoft Windows servers (2000 and 2003)
10 Novell NetWare servers (NW 5.1 SP7 and NW 6.5 SP3)
Q1: Is it feasable to have the ZfS backend running on the same server that
hosts the ZfD backend ?
We are trying to find a way to monitor all server for disk usage. Ideally
we want to get a view/report of all servers (regardless of Novell or
Microsoft) to see where each disk is at with regards to available space and
also see historical trends for disk usage.
Q2: Can ZfS do this for us? We are licensed to use it but so far we've
only implemented the ZfD 6.5.2 and are quite please with the results.
Q3: Also, since we are licensed to use the latest ZfD and ZfS, any reason
to implement ZfS 7 instead of ZfS 6.5? We know that ZfD 7 is pretty much
the same as ZfD 6.5.2 so we've decided to hold back on this upgrade. If we
move forward with ZfS, I'm guessing that sticking with same version being
used with ZfD is a good idea?
Thanks for any answers!
Marc

Marc,
It appears that in the past few days you have not received a response to your
posting. That concerns us, and has triggered this automated reply.
Has your problem been resolved? If not, you might try one of the following options:
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Having problem synching Media Go with my Xperia Arc, and SE sync

Help people. Just got my Xperia Arc and attempted at using Media go to transfer all my music files into the Arc. However, the transfer keep hanging in the middle if I transfer too many files at a go. Say 3-4 albums.
It keep popping out wit the error code 0x802a0006. Help me!!!!!!!!
On a side note, I sync all my contacts with google account. Those contacts that I imported from the google account, how do I sync it t my SE sync account?

I'm sorry to hear about your problem with Media Go and Xperia arc.
I have been trying all morning to regenerate the problem you guys run into. But without any luck. I've been testing with the latest version of Media Go.
Unfortunately I'm not able to place what the error code you get points at either.
I believe that my best suggestion would be to see if you guys get the same problem if you try on another PC computer.
Regarding the SE sync, it's not possible to sync contacts in the phone that comes from Google to SE Sync. That's because they become marked as Google contacts and can't therefore not be synced to another web service.
If you would like to have your Google contacts on SE Sync as well I suggest that you export your contacts from Gmail, and then log in to SE Sync on your computer and import them under contacts.
- Community Manager Sony Xperia Support Forum
If you're new to our forums make sure that you have read our Discussion guidelines.
If you want to get in touch with the local support team for your country please visit our contact page.

Drawing arcs and lines

Hi! I am having problem in drawing arc and line. We have function
Graphics.drawArc(int x, int y, int startAngle, int endAngle)
I need to get the last point where the arc ends. Because I want to draw a line touching the last point of this arc. I request you to provide me some solution.
BR
Omer Amin

Graphics.drawArc requires 6 parameters (not 4). Pass all 6 parameters to the Arc2D.Double() constructor and call it's getEndPoint() method.

Oracle 10, Solaris and ZFS

Hello,
I'm planning to run Oracle 10 under Solaris 10 with a ZFS filesystem. Is Oracle 10 compatible with ZFS? The Solaris-ARC-process uses most of the available memory (RAM) for caching purposes. As other processes demand more memory, ARC releases it. Is such a dynamic memory allocation compatible with Oracle or does Oracle need fixed memory allocations?
Thanks,
- Karl-Josef

In principle all should be fine. ZFS obeys all filesystem semantics, and Oracle will access it through the normal filesystem APIs. I'm not sure if Oracle need to officially state that they are compatible with ZFS. I would have thought it was the other way around - ZFS needs to state it is a fully compatible file system, and so any application will work on it.
ZFS has many neat design features in it. But be aware - it is a write only file system! It never updates an existing block on disk. Instead it writes out a new block in a new location with the updated data in it, and also writes out new parent inode blocks that point to this block, and so on. This has some benefits around snapshotting a file system, and providing fallback recovery or quick recovery in the event of a system crash. However, one update in one data block can cause a cascaded series of writes of many blocks to the disk.
This can have a major impact if you put your redo logs on ZFS. You need to consider this, and if possible do some comparison tests between ZFS and UFS with logging and direct I/O. Redo log writes on COMMIT are synchronous and must go all the way to the disk device itself. This could cause ZFS to have to do many physical disk writes, just for writing one redo log block.
Oracle needs its SGA memory up front, permanently allocated. Solaris should handle this properly, and release as much filesystem cache memory as needed when the Oracle shared memory is allocated. If it doesn't then Sun have messed up big time. But I cannot imagine this, so I am sure your Oracle SGA will be created fine.
I like the design of ZFS a lot. It has similarities with Oracle's ASM - a built in volume manager that abstracts underlying raw disks to a pool of directly useful storage. ASM abstracts to pools for database storage objects, ZFS abstracts to pools for filesystems. Much better than simple volume managers that abstract raw disks to just logical disks. You still end up with disks, and other management issues. I'm still undecided as to whether it makes sense to store an OLTP database on it that needs to process a high transaction rate, given the extra writes incurred by ZFS.
I also assume you are going to use an 8 KB database block size to match the filesystem block size? You don't want small database writes leading to bigger ZFS writes, and vice versa.
John

Looking for some good Arc and Circle drawing pdf code.

Hi I am looking for some suggestions on how to draw circles and arcs using PDF. My arcs have recently started to be drawn as chords in Adobe Reader 9.1.1. I am looking for example code o this nature (I know this is not circle or arc code this is just an example):
b
0 0 0 RG 0 0 0 rg
1 w 98 -156 m 104 -154 l 104 -158 l 0 0 0 RG 0 0 0 rg
b
0 0 0 RG 0 0 0 rg
1 w 398 -156 m 392 -154 l 392 -158 l 0 0 0 RG 0 0 0 rg
b
0 0 0 RG 0 0 0 rg
1 w 98 -156 m 396 -156 l S
BT /F1 10 Tf 243 -151 Td (1.5") Tj ET
1 w 398 -196 m 392 -194 l 392 -198 l 0 0 0 RG 0 0 0 rg
b
i.e. actual PDF tokens.
If you know of a website that feature such examples I would appreciate the URL too.
Thanks

Jem,
Pardon me if I sound rude by suggesting that before you launch into an expensive printing job (which could result in disastrous consequences if you don't do it right) that you actually learn how to use the program first. You may also want to learn something about the offset printing process and how to prepare print jobs.
Even many Illustrator novices know that there is no such thing as a background in Illustrator, in the sense that there is in Photoshop. You will need to PLACE your Photoshop background as a high resolution CMYK tiff in the provided template. That's the answer to your second question. I don't really understand your first question. Maybe someone else will. Are you simply asking, "where do I begin?" If so, then you REALLY REALLY need to read a book on how to use Illustrator. The Adobe Illustrator Classroom in a Book might be the place to start.
"I'm pretty good with CPR. I'm helping a friend do his vasectomy and I already have all the equipment (scalpels, thread, etc.) I'm just having trouble figuring out where to cut."

After updating kernel and ZFS modules, system cannot boot

Starting Import ZFS pools by cache file...
[ 4.966034] VERIFY3(0 == zap_lookup(ddt->ddt_os, ddt->ddt_spa->spa_ddt_stat_object, name, sizeof (uint64_t), sizeof (ddt_histogram_t) / sizeof (uint64_t), &hht->ddt_histogram[type][class])) failed (0 == 6)
[ 4.966100] PANIC at ddt.c:124:ddt_object_load()
[*** ] A start job is running for Import ZFS pools by cache (Xmin Ys / no limit)
And then occasionally I see
[ 240.576219] Tainted: P O 3.19.2-1-ARCH #1
Anyone else experiencing the same?

Thanks!
I did the same and it worked... kind of. The first three reboots it failed (but did not stop the system from booting) producing:
zpool[426]: cannot import 'data': one or more devices is currently unavailable
systemd[1]: zfs-import-cache.service: main process exited, code=exited, status=1/FAILURE
The second boot also resulted in a kernel panic, but as far as I can tell unrelated to zfs.
After reboot one and three imported the pool manually.
From the fourth reboot on loading from cache file always succeeded. However, I it takes faily long (~8 seconds) and even shows
[*** ] A start job is running for Import ZFS pools by cache (Xmin Ys / no limit)
briefly. Altough I might only notice that because the recent updates sped up oder parts of the boot process. Did you observe a slowdown during boot time, too, kinghajj?
Last edited by robm (2015-03-22 01:21:05)

Solaris 10 upgrade and zfs pool import

Hello folks,
I am currently running "Solaris 10 5/08 s10x_u5wos_10 X86" on a Sun Thumper box where two drives are mirrored UFS boot volume and the rest is used in ZFS pools. I would like to upgrade my system to "10/08 s10x_u6wos_07b X86" to be able to use ZFS for the boot volume. I've seen documentation that describes how to break the mirror, create new BE and so on. This system is only being used as iSCSI target for windows systems so there is really nothing on the box that i need other then my zfs pools. Could i simply pop the DVD in and perform a clean install and select my current UFS drives as my install location, basically telling Solaris to wipe them clean and create an rpool out of them. Once the installation is complete, would i be able to import my existing zfs pools ?
Thank you very much

Sure. As long as you don't write over any of the disks in your ZFS pool you should be fine.
Darren

ARC and ZFS

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