/** Returns maximum block size available in the group. */
private String getMaxBlockSize() {
final long free = blockDevInfo.getFreeInVolumeGroup() / 1024;
String maxBlockSize = "0";
try {
final long taken = Long.parseLong(blockDevInfo.getBlockDevice().getBlockSize());
final BlockDevInfo oBDI = blockDevInfo.getOtherBlockDevInfo();
long max = free + taken;
final String lvm = blockDevInfo.getBlockDevice().getName();
if (hostCheckBoxes != null) {
for (final Host h : hostCheckBoxes.keySet()) {
if (blockDevInfo.getHost() == h) {
continue;
}
if (hostCheckBoxes.get(h).isSelected()) {
for (final BlockDevice b : h.getBlockDevices()) {
if (lvm.equals(b.getName()) || (oBDI != null && oBDI.getBlockDevice() == b)) {
final long oFree = h.getFreeInVolumeGroup(b.getVolumeGroup()) / 1024;
final long oTaken = Long.parseLong(b.getBlockSize());
if (oFree + oTaken < max) {
/* take the smaller maximum. */
max = oFree + oTaken;
}
}
}
}
}
}
maxBlockSize = Long.toString(max);
} catch (final Exception e) {
Tools.appWarning("could not get max size");
/* ignore */
}
return maxBlockSize;
}
/** Returns array of volume group checkboxes. */
private Map<String, JCheckBox> getPVCheckBoxes(final Set<String> selectedPVs) {
final Map<String, JCheckBox> components = new LinkedHashMap<String, JCheckBox>();
for (final BlockDevice pv : host.getPhysicalVolumes()) {
final String pvName = pv.getName();
final JCheckBox button = new JCheckBox(pvName, selectedPVs.contains(pvName));
button.setBackground(Tools.getDefaultColor("ConfigDialog.Background.Light"));
components.put(pvName, button);
}
return components;
}
/** LVM Resize and DRBD Resize. */
private boolean resize(final String size) {
final boolean ret =
LVM.resize(blockDevInfo.getHost(), blockDevInfo.getBlockDevice().getName(), size, false);
if (ret) {
answerPaneSetText(
"Lodical volume was successfully resized on " + blockDevInfo.getHost() + ".");
/* resize lvm volume on the other node. */
final String lvm = blockDevInfo.getBlockDevice().getName();
final BlockDevInfo oBDI = blockDevInfo.getOtherBlockDevInfo();
boolean resizingFailed = false;
for (final Host h : hostCheckBoxes.keySet()) {
if (h == blockDevInfo.getHost() || !hostCheckBoxes.get(h).isSelected()) {
continue;
}
for (final BlockDevice b : h.getBlockDevices()) {
if (lvm.equals(b.getName()) || (oBDI != null && oBDI.getBlockDevice() == b)) {
/* drbd or selected other host */
final boolean oRet = LVM.resize(h, b.getName(), size, false);
if (oRet) {
answerPaneAddText(
"Lodical volume was successfully" + " resized on " + h.getName() + ".");
} else {
answerPaneAddTextError(
"Resizing of " + b.getName() + " on host " + h.getName() + " failed.");
resizingFailed = true;
}
break;
}
if (resizingFailed) {
break;
}
}
}
if (oBDI != null && !resizingFailed) {
final boolean dRet = blockDevInfo.resizeDrbd(false);
if (dRet) {
answerPaneAddText(
"DRBD resource "
+ blockDevInfo.getDrbdVolumeInfo().getName()
+ " was successfully resized.");
} else {
answerPaneAddTextError(
"DRBD resource " + blockDevInfo.getDrbdVolumeInfo().getName() + " resizing failed.");
}
}
} else {
answerPaneAddTextError(
"Resizing of "
+ blockDevInfo.getName()
+ " on host "
+ blockDevInfo.getHost()
+ " failed.");
}
return ret;
}
/** Returns true if the specified host has specified PVs without VGs. */
private boolean hostHasPVS(final Host host) {
final Map<String, BlockDevice> oPVS = new HashMap<String, BlockDevice>();
for (final BlockDevice bd : host.getPhysicalVolumes()) {
oPVS.put(bd.getName(), bd);
}
final Set<String> pvs = pvCheckBoxes.keySet();
int selected = 0;
for (final String pv : pvs) {
if (!pvCheckBoxes.get(pv).isSelected()) {
continue;
}
selected++;
final BlockDevice opv = oPVS.get(pv);
if (opv == null) {
return false;
}
if (!opv.isPhysicalVolume() || opv.isVolumeGroupOnPhysicalVolume()) {
return false;
}
}
return selected > 0;
}